Kuraray Co., Ltd.

Japan

Back to Profile

1-100 of 3,359 for Kuraray Co., Ltd. and 3 subsidiaries Sort by
Query
Excluding Subsidiaries
Aggregations Reset Report
IP Type
        Patent 3,065
        Trademark 294
Jurisdiction
        World 2,067
        United States 967
        Canada 226
        Europe 99
Owner / Subsidiary
[Owner] Kuraray Co., Ltd. 3,359
Kuraray Europe GmbH 11
Kuraray Fastening Co., Ltd. 9
Kuraray Medical Inc. 1
Date
New (last 4 weeks) 18
2023 September (MTD) 13
2023 August 16
2023 July 16
2023 June 22
See more
IPC Class
C08J 5/18 - Manufacture of films or sheets 298
B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin 279
C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids 274
C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes 151
G02B 5/30 - Polarising elements 128
See more
NICE Class
05 - Pharmaceutical, veterinary and sanitary products 113
17 - Rubber and plastic; packing and insulating materials 76
01 - Chemical and biological materials for industrial, scientific and agricultural use 66
24 - Textiles and textile goods 55
18 - Leather and imitations of leather 48
See more
Status
Pending 342
Registered / In Force 3,017
  1     2     3     ...     34        Next Page

1.

HYDROGEL FOR CELL EMBEDDING, IMMUNOISOLATION DEVICE, AND TRANSPLANT MATERIAL

      
Application Number 18033935
Status Pending
Filing Date 2021-10-28
First Publication Date 2023-09-28
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kobayashi, Goro
  • Kawagoe, Masako
  • Fujita, Akio
  • Ayano, Satoru

Abstract

An object of this invention is to simultaneously achieve, in long-term transplantation of a macroencapsulation immunoisolation device using a porous membrane or the like, improvement in the diffusion efficiency of physiologically active substances released from a material to be transplanted, improvement in the diffusion efficiency of nutrients to cells and the like, which are the material to be transplanted, and uniform and efficient dispersion and fixation of cells and the like encapsulated as the material to be transplanted in the macroencapsulation immunoisolation device, while maintaining an immunoisolation effect. The present invention provides a hydrogel for embedding a material to be transplanted, comprising a polymer crosslinked by visible light, and water.

IPC Classes  ?

  • A61L 27/52 - Hydrogels or hydrocolloids
  • A61L 27/16 - Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds

2.

EMULSION COMPOSITION AND METHOD FOR PRODUCING SAME

      
Application Number 18023555
Status Pending
Filing Date 2021-08-31
First Publication Date 2023-09-28
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Cho, Tetsuyuki
  • Uehara, Yosuke
  • Ueno, Yoshikazu
  • Asada, Toru
  • Ishida, Eiichi

Abstract

Provided are an emulsion composition which can be produced more easily than a conventional method and has excellent emulsion stability, and a method for producing the same. The emulsion composition contains a liquid conjugated diene rubber, a diluent having a vapor pressure at 20° C. of 10 Pa or less, a surfactant, and water.

IPC Classes  ?

  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids

3.

POLY(VINYL ALCOHOL) FILM AND PRODUCTION METHOD THEREFOR

      
Application Number JP2023010856
Publication Number 2023/182267
Status In Force
Filing Date 2023-03-20
Publication Date 2023-09-28
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ishihara, Mana
  • Takatori, Yohei
  • Nakai, Shinji

Abstract

A poly(vinyl alcohol) film having a degree of swelling (A) of 195-205 mass% and having a value of (B)/(A) of 1.27-1.40, where (B) is the degree of swelling of the film which has been stretched to 2.5 times in 30°C water under the conditions of a stretching rate of 240 %/min. When immersed in 30°C water for 30 seconds, the poly(vinyl alcohol) film has an average water absorption rate of 1.35 mass%/sec or greater. By using such poly(vinyl alcohol) film in polarizing-film production, polarizing films having excellent optical performance can be obtained while diminishing breakages even under high-speed stretching conditions.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • B29D 7/01 - Films or sheets
  • G02B 5/30 - Polarising elements
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

4.

FLEXIBLE GEOMEMBRANE

      
Application Number 18122980
Status Pending
Filing Date 2023-03-17
First Publication Date 2023-09-21
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Chow, Edgard
  • Morales, Emilio
  • Okamoto, Makoto

Abstract

A multilayer article including a chemical-resistant layer comprising a polyurea, where the chemical-resistant layer is not an adhesive layer between two layers, and a barrier layer comprising an ethylene-vinyl alcohol copolymer. The multilayer article has good flexibility and toughness, resistance to water and chemicals, and excellent barrier properties to organic solvents and gases.

IPC Classes  ?

  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/34 - Layered products essentially comprising synthetic resin comprising polyamides
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer

5.

Multi-Layer Film, and Multi-Layer Structure In Which Same Is Used

      
Application Number 18012906
Status Pending
Filing Date 2021-06-24
First Publication Date 2023-09-21
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kitamura, Masahiro
  • Yoshida, Kentaro
  • Luyten, Wout

Abstract

There is provided a multilayer film having a structure in which a layer (X) is an outermost layer and at least the layer (X), a layer (Y), and a layer (Z) are adjacently laminated in sequence, wherein the layer (X) is made of a resin composition (A) comprising a vinyl alcohol polymer (a) having a melting point of lower than 150° C. as a main component; the layer (Y) comprises an adhesive resin (B) having a melting point of lower than 150° C. as a main component; the layer (Z) comprises a polyolefin resin (C) having a melting point of lower than 150° C. as a main component; and the resin composition (A) comprises alkali metal ions (b) in 25 to 1500 ppm. Such a multilayer film is suitably used as a gas barrier film because it has excellent appearance and interlayer adhesiveness even while having a vinyl alcohol polymer as an outermost layer.

IPC Classes  ?

  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 7/02 - Physical, chemical or physicochemical properties
  • B65D 65/40 - Applications of laminates for particular packaging purposes

6.

THERMOPLASTIC RESIN COMPOSITION, MOLDED ARTICLE, AND LAMINATED STRUCTURE

      
Application Number JP2023007964
Publication Number 2023/171546
Status In Force
Filing Date 2023-03-03
Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kawahara, Moe
  • Okumura, Nao
  • Ono, Tomohiro

Abstract

Provided are: a thermoplastic resin composition comprising a thermoplastic polyurethane in which toughness and melt tension are improved, without significantly impairing the properties of the thermoplastic polyurethane such as excellent tensile breaking strength, tensile breaking strain, and wear resistance; a molded article produced from the thermoplastic resin composition; and a laminated structure. Provided is a thermoplastic resin composition comprising a thermoplastic polyurethane (A) and an acrylic block copolymer (B) that contains an acrylic ester polymer block (b1) and a methacrylic ester polymer block (b2), wherein the content of the thermoplastic polyurethane (A) relative to a total of 100 parts by mass of the thermoplastic polyurethane (A) and the acrylic block copolymer (B) is greater than 75 parts by mass but not more than 99 parts by mass.

IPC Classes  ?

  • C08L 75/04 - Polyurethanes
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • C08F 297/02 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
  • C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers

7.

POLY(VINYL ALCOHOL) FILM AND METHOD FOR PRODUCING POLY(VINYL ALCOHOL) FILM

      
Application Number JP2023008824
Publication Number 2023/171710
Status In Force
Filing Date 2023-03-08
Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kazeto, Osamu
  • Okamoto, Minoru

Abstract

A poly(vinyl alcohol) film comprising poly(vinyl alcohol) having a degree of saponification of 98 mol% or higher and a degree of polymerization of 1,500-8,000, characterized in that the poly(vinyl alcohol), when having an absolute molecular weight of 1×106, has an intrinsic viscosity of 7.5-11 dl/g, which is determined with a gel permeation chromatograph equipped with a light scattering detector and a viscometer at a temperature of 40°C using hexafluoroisopropanol containing 20-mM sodium trifluoroacetate as a mobile phase solvent. Such poly(vinyl alcohol) film has a stable film width, fluctuates little in edge thickness, and has excellent stretchability. With this PVA film, it is hence possible to efficiently produce a polarizing film having a wide width and excellent optical performance.

IPC Classes  ?

  • C08F 8/12 - Hydrolysis
  • C08F 8/28 - Condensation with aldehydes or ketones
  • C08F 16/06 - Polyvinyl alcohol
  • C08F 216/06 - Polyvinyl alcohol
  • C08J 5/18 - Manufacture of films or sheets
  • C08J 7/00 - Chemical treatment or coating of shaped articles made of macromolecular substances
  • C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • G02B 5/30 - Polarising elements
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

8.

Multilayer Structure and Multilayer Tube

      
Application Number 18011482
Status Pending
Filing Date 2021-06-11
First Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Suzuki, Makoto
  • Oshita, Mizuko

Abstract

Provided are a multilayer structure and a multilayer tube which have superior gas barrier properties and in which occurrence of cracks at a time of deforming by heating is inhibited. The multilayer structure includes at least a layer (X) constituted from a resin composition (x), the resin composition (x) containing: an ethylene-vinyl alcohol copolymer (A); and an acid-modified ethylene-α-olefin copolymer (B), wherein a number of total layers of the multilayer structure is 3 or more, a total thickness of the total layers is 500 μm or more, a thickness of the layer (X) is 30 μm or more, a mass ratio (B/A) of the acid-modified ethylene-α-olefin copolymer (B) to the ethylene-vinyl alcohol copolymer (A) is 3/97 or more and 15/85 or less, and an acid value of the acid-modified ethylene-α-olefin copolymer (B) is 8.5 mg KOH/g or more and 15 mg KOH/g or less.

IPC Classes  ?

  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind

9.

COMPOSITION, RESIN COMPOSITION, AND MOLDED BODY INCLUDING THESE

      
Application Number 18019648
Status Pending
Filing Date 2021-07-30
First Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Nishijima, Yuki
  • Noguchi, Daiki
  • Fukumoto, Takashi

Abstract

A composition containing a compound (A) containing a structure represented by the following general formula (I) as a first component, at least one of an antioxidant (B1) different from a phosphorus-based antioxidant and a light stabilizer (B2) as a second component, and a resin component (C) as a third component: A composition containing a compound (A) containing a structure represented by the following general formula (I) as a first component, at least one of an antioxidant (B1) different from a phosphorus-based antioxidant and a light stabilizer (B2) as a second component, and a resin component (C) as a third component: A composition containing a compound (A) containing a structure represented by the following general formula (I) as a first component, at least one of an antioxidant (B1) different from a phosphorus-based antioxidant and a light stabilizer (B2) as a second component, and a resin component (C) as a third component: wherein R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group; and R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group.

IPC Classes  ?

  • C08K 5/17 - Amines; Quaternary ammonium compounds
  • C08K 5/06 - Ethers; Acetals; Ketals; Ortho-esters
  • C08L 75/06 - Polyurethanes from polyesters

10.

INSULATING MEMBER AND INSULATING SHEET

      
Application Number JP2023008026
Publication Number 2023/171562
Status In Force
Filing Date 2023-03-03
Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Inoue, Yuki
  • Katsuya, Satoshi
  • Tsunofuri, Shohei

Abstract

Provided is an insulating member capable of insulating and fixing a conductive member. An insulating member (10) for insulating a conductive member (6, 8), the insulating member (10) including at least one insulating layer and at least one porous layer, and the insulating member fixing the conductive member. The at least one porous layer is composed of a thermoplastic resin and a plurality of reinforced fibers, and pores are formed between the plurality of reinforced fibers. The porosity Y [%] of the porous layer in the insulating member and the thickness X [μm] of the insulating layer in the insulating member satisfy the following equation (1): 0.01≤Y/X≤4.75

IPC Classes  ?

  • H02K 3/30 - Windings characterised by the insulating material
  • H01B 3/30 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
  • H01B 3/47 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes fibre-reinforced plastics, e.g. glass-reinforced plastics
  • H01B 17/62 - Insulating-layers or insulating-films on metal bodies
  • H01F 5/06 - Insulation of windings
  • H01F 27/32 - Insulating of coils, windings, or parts thereof
  • H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

11.

HYDROGENATED BLOCK COPOLYMER, GEL COMPOSITION, CABLE FILLER, CABLE, COSMETICS, LUBRICATING OIL, AND GREASE

      
Application Number JP2023008322
Publication Number 2023/171614
Status In Force
Filing Date 2023-03-06
Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Shimizu, Seiya
  • Motoda, Satoshi

Abstract

This hydrogenated block copolymer (a) is a hydrogenated product of a block copolymer that has one polymeric block (A) in which a main body thereof is an aromatic vinyl compound unit, and at least one polymeric block (B) in which main bodies thereof are a butadiene unit (Bd) and an isoprene unit (Ip). The hydrogenated block copolymer satisfies the following requirements (I) and (II). (I) The formula (i) is satisfied. (i): α×β>6.500×109 (In formula (i), α represents the weight average molecular weight of the polymeric block (A), and β represents the weight average molecular weight of the hydrogenated block copolymer (a).) (II) The level of vinylation of the polymeric block (B) is less than 35%.

IPC Classes  ?

  • C08F 8/04 - Reduction, e.g. hydrogenation
  • A61K 8/81 - Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • A61Q 1/00 - Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q 5/00 - Preparations for care of the hair
  • A61Q 19/10 - Washing or bathing preparations
  • C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
  • C10M 143/12 - Lubricating composition characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing conjugated diene
  • C10N 30/02 - Pour-point; Viscosity index
  • C10N 40/04 - Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
  • C10N 40/25 - Internal-combustion engines

12.

PIGMENT-CONTAINING COMPOSITION, AND INK USING SAME

      
Application Number JP2023009320
Publication Number 2023/171797
Status In Force
Filing Date 2023-03-10
Publication Date 2023-09-14
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Nishijima, Yuuki
  • Fukumoto, Takashi

Abstract

Provided are: a pigment-containing composition capable of suppressing pigment fading by inhibiting pigment degradation; and an ink using said composition. The pigment-containing composition comprises: a pigment capable of absorbing or emitting light having a wavelength of 380 nm-2,500 nm; and a compound (A) including a structure represented by general formula (I). (In general formula (I), R1and R2each independently represent any one among a hydrogen atom, an alkyl group having 1-6 carbon atoms, an alkoxy group having 1-6 carbon atoms, an alkenyl group having 2-6 carbon atoms, an aryl group having 6-20 carbon atoms, and an aralkyl group having 7-20 carbon atoms. R3and R4 each independently represent any one among a hydrogen atom, an alkyl group having 1-6 carbon atoms, an alkoxy group having 1-6 carbon atoms, an alkenyl group having 2-6 carbon atoms, an alkenyloxy group having 2-6 carbon atoms, an aryl group having 6-20 carbon atoms, and an aralkyl group having 7-20 carbon atoms.)

IPC Classes  ?

  • C07C 43/15 - Unsaturated ethers containing only non-aromatic carbon-to-carbon double bonds
  • C07C 43/178 - Unsaturated ethers containing hydroxy or O-metal groups
  • C09B 7/02 - Bis-indole indigos
  • C09B 29/08 - Amino benzenes
  • C09B 29/15 - Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the naphthalene series
  • C09D 17/00 - Pigment pastes, e.g. for mixing in paints
  • C07B 61/00 - Other general methods
  • C09D 11/00 - Inks
  • C09B 67/00 - Influencing the physical, e.g. the dyeing or printing, properties of dyestuffs without chemical reaction, e.g. by treating with solvents; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B 67/44 - Solutions
  • C09B 67/46 - Dispersions

13.

ORGANIC/INORGANIC CLADDING MATERIAL

      
Application Number JP2023006233
Publication Number 2023/167058
Status In Force
Filing Date 2023-02-21
Publication Date 2023-09-07
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Nakashima, Takahiro
  • Onodera, Minoru
  • Sasaki, Shoma

Abstract

An organic/inorganic cladding material equipped with a thermoplastic liquid crystal polymer film which has a first thermal expansion coefficient in one direction, and an inorganic layer which has a second thermal expansion coefficient in a direction parallel to the one direction, and is joined to the thermoplastic liquid crystal polymer film, wherein the first thermal expansion coefficient is lower than the second thermal expansion coefficient, and the difference between the first thermal expansion coefficient and the second thermal expansion coefficient is 10ppm/K or greater.

IPC Classes  ?

  • B32B 7/027 - Thermal properties
  • B29C 55/02 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
  • B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

14.

RESIN COMPOSITION, ADHESIVE AGENT, AND COMPATIBILIZER

      
Application Number 18195061
Status Pending
Filing Date 2023-05-09
First Publication Date 2023-08-31
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kato, Masahiro
  • Senda, Yasushi
  • Satani, Ryo

Abstract

The present invention relates to a resin composition containing a modified hydrogenated product (A) of a block copolymer containing a polymer block (A-1) having a structural unit derived from an aromatic vinyl compound and a polymer block (A-2) having a structural unit derived from a conjugated diene compound, and a polyolefin resin (B), wherein the modified hydrogenated product (A) has one or two or more functional groups selected from an alkoxysilyl group, a carboxy group, an amino group, a hydroxy group, an epoxy group, and a group derived from an acid anhydride, and the polymer block (A-2) has a vinyl bond amount of 50 to 99 mol %; and the resin composition further containing a polar resin (C).

IPC Classes  ?

  • C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
  • C09J 151/00 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers

15.

ACIDIC GAS SEPARATION DEVICE, AIR PURIFIER, AIR CONDITIONER, AND ACIDIC GAS CONCENTRATION DEVICE

      
Application Number 18016001
Status Pending
Filing Date 2021-06-30
First Publication Date 2023-08-31
Owner KURARAY CO.,LTD. (Japan)
Inventor
  • Kanno, Momotaro
  • Inul, Yoshihisa
  • Iwasaki, Hideharu

Abstract

One aspect of the present invention is an acidic gas separation device including: an electrolyte layer; a pair of electrodes provided with the electrolyte layer interposed between the pair of electrodes; and a voltage application unit that applies a voltage between the pair of electrodes, wherein the pair of electrodes are gas permeable electrodes, and the electrolyte layer contains: at least one selected from the group consisting of high molecular weight redox compounds having a radicalization rate of 90% or more, high molecular weight redox compounds having a quinone group in a molecule, and high molecular weight redox compounds having an imino group in a molecule; and a nonvolatile electrolytic solution.

IPC Classes  ?

  • B01D 53/32 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
  • A61L 9/16 - Disinfection, sterilisation or deodorisation of air using physical phenomena
  • F24F 8/192 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
  • A61L 9/04 - Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating

16.

MODIFIED LIQUID DIENE RUBBERS, RUBBER COMPOSITIONS, AND SEALING MATERIALS

      
Application Number 17924189
Status Pending
Filing Date 2021-05-12
First Publication Date 2023-08-31
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ueno, Yoshikazu
  • Uehara, Yosuke
  • Momoi, Nana

Abstract

The present invention provides a modified liquid diene rubber that is capable of giving a crosslinked product with excellent adhesion evaluated in terms of shear bond strength, a rubber composition including the modified liquid diene rubber, and a sealing material obtained from the rubber composition. A modified liquid diene rubber (A) has a functional group (a) derived from an acid anhydride, and contains butadiene units in an amount of 50 mass % or more based on the total monomer units, and the polystyrene-equivalent weight average molecular weight (Mw) measured by gel permeation chromatography (GPC) is in the range of 5,000 to 50,000.

IPC Classes  ?

17.

LAYERED FORMED SHEET AND METHOD FOR MANUFACTURING THE SAME

      
Application Number 18013286
Status Pending
Filing Date 2021-06-28
First Publication Date 2023-08-31
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Hitomi, Yoshinori
  • Imagawa, Akira
  • Horikoshi, Takafumi
  • Ogawa, Atsuhisa
  • Iwasaki, Yoshihiro
  • Suemori, Hisashi
  • Higashimoto, Yoshihiro

Abstract

The present invention relates to a layered formed sheet comprising two or more formed sheets each formed from a curable composition comprising (A) an aluminosilicate source, (B) an alkaline metal hydroxide, (C) cellulose-based fibers and (D) alkali-resistant fibers other than cellulose-based fibers, in which the aluminosilicate source (A) comprises a blast furnace slag, and the content of a blast furnace slag having a specific surface area of 1000 cm2/g or more and 9000 cm2/g or less is more than 55% by mass and 90% by mass or less related to a total solid content in the curable composition.

IPC Classes  ?

  • C04B 7/153 - Mixtures thereof with other inorganic cementitious materials or other activators
  • C04B 16/02 - Cellulosic materials
  • B28B 1/42 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon by wrapping, e.g. winding using mixtures containing fibres, e.g. for making sheets by slitting the wound layer
  • C04B 22/06 - Oxides; Hydroxides
  • C04B 16/06 - Macromolecular compounds fibrous

18.

PRODUCTION METHOD OF 2,7-OCTADIEN-1-OL

      
Application Number JP2023006231
Publication Number 2023/162973
Status In Force
Filing Date 2023-02-21
Publication Date 2023-08-31
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Hosaka, Yusaku
  • Kobayashi, Shohei

Abstract

A production method of 2,7-octadien-1-ol that comprises: step (1) for feeding a liquid starting material mixture containing butadiene, a Group 6-11 transition metal catalyst containing a Group 6-11 transition metal, a tertiary phosphorus compound, an amine compound and water into a telomerization reactor; and step (2) for reacting butadiene and water in the telomerization reactor under a carbon dioxide atmosphere to obtain a liquid reaction mixture containing 2,7-octadiene-1-ol, wherein the residence time of the liquid starting material mixture in the telomerization reactor is 1.3-3.0 hours.

IPC Classes  ?

  • C07C 29/46 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by addition reactions, i.e. reactions involving at least one carbon-to-carbon double or triple bond by diene-synthesis
  • C07C 33/02 - Acyclic alcohols with carbon-to-carbon double bonds

19.

POLYPROPYLENE-BASED RESIN COMPOSITION, HYDROGENATED BLOCK COPOLYMER, MOLDED ARTICLE, AND INTERIOR-EXTERIOR DECORATIVE MATERIAL FOR AUTOMOBILES

      
Application Number 18018134
Status Pending
Filing Date 2021-07-29
First Publication Date 2023-08-24
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sekiguchi, Takahiro
  • Senda, Yasushi

Abstract

A polypropylene-based resin composition, a hydrogenated block copolymer contained in the polypropylene-based resin composition, a molded article containing the polypropylene-based resin composition, and an interior-exterior decorative material for automobiles, which includes the molded article. The polypropylene-based resin composition contains a polypropylene-based polymer (A), an ethylene-α-olefin copolymer rubber (B), and a hydrogenated block copolymer (C). In the polypropylene-based resin composition, the hydrogenated block copolymer (C) is a hydrogenated product of a block copolymer having at least one polymer block (C-1) mainly composed of an aromatic vinyl compound unit, and having at least one polymer block (C-2) mainly composed of a butadiene (Bd) unit and an isoprene (Ip) unit, a content of the aromatic vinyl compound units in the hydrogenated block copolymer is less than 30% by mass, and a vinyl bond amount of the polymer block (C-2) is 20% or less.

IPC Classes  ?

20.

CARBONACEOUS MATERIAL

      
Application Number JP2023002634
Publication Number 2023/157610
Status In Force
Filing Date 2023-01-27
Publication Date 2023-08-24
Owner KURARAY CO., LTD. (Japan)
Inventor Iwasaki, Hideharu

Abstract

XPSNDIRXPSNDIRNDIR as found by NDIR of 0.20 to 0.78; and a specific surface area as found by BET of 40 m2/g or less.

IPC Classes  ?

  • C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

21.

VINYL ACETATE, VINYL ACETATE POLYMER, AND VINYL ALCOHOL POLYMER

      
Application Number 18003775
Status Pending
Filing Date 2021-06-30
First Publication Date 2023-08-17
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Inubushi, Yasutaka
  • Hachiya, Keishi
  • Kato, Masaki
  • Yamasaki, Yoshikazu
  • Okamoto, Makoto
  • Somemiya, Kazuyuki
  • Izawa, Takafumi

Abstract

[Problem to be solved] To provide a traceable vinyl acetate, a polymer containing the vinyl acetate, and a vinyl alcohol polymer which is a saponified product of the polymer. [Problem to be solved] To provide a traceable vinyl acetate, a polymer containing the vinyl acetate, and a vinyl alcohol polymer which is a saponified product of the polymer. [Solution] Vinyl acetate having a ratio of carbon-14 to total carbon of 1.0×10−4 or more, a vinyl acetate polymer containing the vinyl acetate as a monomer unit and a vinyl alcohol polymer obtained by saponifying the vinyl acetate polymer.

IPC Classes  ?

22.

WATER-SOLUBLE FILM AND PACKAGE

      
Application Number 18003791
Status Pending
Filing Date 2021-06-14
First Publication Date 2023-08-17
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Okamoto, Minoru
  • Shimizu, Sayaka
  • Kazeto, Osamu

Abstract

[Problem to be solved] To provide a water-soluble film having good transparency and good releasability from a support with less surfactant content. [Problem to be solved] To provide a water-soluble film having good transparency and good releasability from a support with less surfactant content. [Solution] A water-soluble film containing a polyvinyl alcohol resin and surfactant, wherein a content of the surfactant is 0.005 to 1 parts by mass with respect to 100 parts by mass of the polyvinyl alcohol resin, and a ratio S(0)/S(32) of an abundance amount S(0) of the surfactant on at least one surface of the water-soluble film to an abundance amount S(32) of the surfactant on a cross-section surface at a depth of 32 nm from the at least one surface of the water-soluble film, measured by a count number of fragment ions derived from the surfactant detected by time-of-flight secondary ion mass spectrometry on the at least one surface of the water-soluble film, is in the range of 100 to 500.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • C08K 5/17 - Amines; Quaternary ammonium compounds
  • C08K 3/34 - Silicon-containing compounds
  • C11D 17/04 - Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D 3/395 - Bleaching agents

23.

WATER-SOLUBLE FILM AND PACKAGE

      
Application Number 18003797
Status Pending
Filing Date 2021-06-14
First Publication Date 2023-08-17
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Okamoto, Minoru
  • Shimizu, Sayaka
  • Kazeto, Osamu

Abstract

[Problem to be solved] To provide a water-soluble film capable of suppressing formation of holes when used as a package while maintaining water solubility, and a package using such a water-soluble film. [Problem to be solved] To provide a water-soluble film capable of suppressing formation of holes when used as a package while maintaining water solubility, and a package using such a water-soluble film. [Solution] A water-soluble film containing a polyvinyl alcohol resin, wherein within a square A1 with a side of 1 cm or more and 5 cm or less positioned at an arbitrary location on at least one surface of the water-soluble film, each side of an area of square A2 with a side of 5 μm is divided into 64 to divide the entire area into 4096 pixels, and when elastic moduli of the pixels are measured by an atomic force microscope, a number average value of the elastic moduli of the pixels is 1 to 200 MPa, and a coefficient of variation of the elastic moduli of the pixels is 0.1 to 0.7.

IPC Classes  ?

  • B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
  • B65D 65/42 - Applications of coated or impregnated materials
  • C08J 5/18 - Manufacture of films or sheets
  • C08F 218/08 - Vinyl acetate

24.

WATER-SOLUBLE FILM AND PACKAGING

      
Application Number 18003771
Status Pending
Filing Date 2021-06-14
First Publication Date 2023-08-17
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Okamoto, Minoru
  • Shimizu, Sayaka
  • Kazeto, Osamu

Abstract

[Problem to be solved] To provide a water-soluble film capable of which is excellent in water solubility and less likely to cause problems such as breakage of packaging material during storage and transportation by controlling the crystal long period structure of the PVA molecule and, for example, the degree of phase separation state between PVA and other components in the water-soluble film.

IPC Classes  ?

25.

WATER-SOLUBLE FILM AND PACKAGING

      
Application Number 18003785
Status Pending
Filing Date 2021-06-14
First Publication Date 2023-08-17
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Okamoto, Minoru
  • Shimizu, Sayaka
  • Kazeto, Osamu

Abstract

[Problem to be solved] To provide a water-soluble film excellent in high-speed heat-sealing property while maintaining excellent solubility in water, and a package using the same. [Problem to be solved] To provide a water-soluble film excellent in high-speed heat-sealing property while maintaining excellent solubility in water, and a package using the same. [Solution] A water-soluble film of the present invention is a water-soluble film containing a polyvinyl alcohol resin, wherein after conditioning the water-soluble film at a temperature of 20° C. and a relative humidity of 60% for 24 hours, a first melting temperature Tm1 obtained from a melting curve when the temperature of the water-soluble film is raised to 200° C. at 500° C./sec and a second melting temperature Tm2 obtained from a melting curve when the temperature of the water-soluble film is cooled to 0° C. at 100° C./sec after a temperature rise and the temperature of the water-soluble film is again raised to 200° C. at 100° C./sec satisfy relationships of the following formulas (1) and (2). [Problem to be solved] To provide a water-soluble film excellent in high-speed heat-sealing property while maintaining excellent solubility in water, and a package using the same. [Solution] A water-soluble film of the present invention is a water-soluble film containing a polyvinyl alcohol resin, wherein after conditioning the water-soluble film at a temperature of 20° C. and a relative humidity of 60% for 24 hours, a first melting temperature Tm1 obtained from a melting curve when the temperature of the water-soluble film is raised to 200° C. at 500° C./sec and a second melting temperature Tm2 obtained from a melting curve when the temperature of the water-soluble film is cooled to 0° C. at 100° C./sec after a temperature rise and the temperature of the water-soluble film is again raised to 200° C. at 100° C./sec satisfy relationships of the following formulas (1) and (2). 105° C.≤Tm1≤165° C.  (1) [Problem to be solved] To provide a water-soluble film excellent in high-speed heat-sealing property while maintaining excellent solubility in water, and a package using the same. [Solution] A water-soluble film of the present invention is a water-soluble film containing a polyvinyl alcohol resin, wherein after conditioning the water-soluble film at a temperature of 20° C. and a relative humidity of 60% for 24 hours, a first melting temperature Tm1 obtained from a melting curve when the temperature of the water-soluble film is raised to 200° C. at 500° C./sec and a second melting temperature Tm2 obtained from a melting curve when the temperature of the water-soluble film is cooled to 0° C. at 100° C./sec after a temperature rise and the temperature of the water-soluble film is again raised to 200° C. at 100° C./sec satisfy relationships of the following formulas (1) and (2). 105° C.≤Tm1≤165° C.  (1) Tm2−Tm1≥20° C.  (2)

IPC Classes  ?

26.

BINDER SUITABLE FOR ELECTRICITY STORAGE DEVICE ELECTRODES, BINDER SOLUTION FOR ELECTRICITY STORAGE DEVICE ELECTRODES, ELECTRICITY STORAGE DEVICE ELECTRODE SLURRY, ELECTRICITY STORAGE DEVICE ELECTRODE, AND ELECTRICITY STORAGE DEVICE

      
Application Number 18010600
Status Pending
Filing Date 2021-06-15
First Publication Date 2023-08-17
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Tachikawa, Kengo
  • Inui, Yoshihisa

Abstract

The present disclosure provides a binder for electricity storage device electrodes, said binder containing a polyvinyl alcohol resin and an electrolyte solution-swellable resin.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08L 27/16 - Homopolymers or copolymers of vinylidene fluoride
  • C08L 29/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols

27.

CURED FIBER REINFORCED COMPOSITE

      
Application Number 18013282
Status Pending
Filing Date 2021-06-28
First Publication Date 2023-08-10
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Horikoshi, Takafumi
  • Imagawa, Akira
  • Iwasaki, Yoshihiro
  • Suemori, Hisashi
  • Ogawa, Atsuhisa
  • Higashimoto, Yoshihiro

Abstract

The present invention relates to a cured composite comprising (A) an aluminosilicate source, (B) an alkali activator and (C) alkali-resistant fibers, in which: the aluminosilicate source (A) contains a blast furnace slag, in which the content of the blast furnace slag is 40% by mass or more relative to a total solid content in the aluminosilicate source (A); the content of the alkali activator (B) is 10% by mass or less relative to a total solid content in the curable composition; and the water content in the cured composite is 10.0% by mass or less relative to a total mass of the cured composite.

IPC Classes  ?

28.

POLYVINYL ALCOHOL-BASED FIBER, FIBER STRUCTURE, AND METHOD FOR PRODUCING SAME

      
Application Number JP2023003243
Publication Number 2023/149481
Status In Force
Filing Date 2023-02-01
Publication Date 2023-08-10
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Iwachido Naoyuki
  • Endo Ryokei
  • Shimabukuro Osamu
  • Nonaka Yoshimi

Abstract

[Problem] To provide a polyvinyl alcohol-based fiber having a sufficient shrinkage rate and a sufficient shrinkage stress when water at room temperature or higher, particularly around 35 °C, is absorbed. [Solution] Provided are: a polyvinyl alcohol-based fiber which includes a modified polyvinyl alcohol containing at least 1 mol% of a carboxy group and has a birefringence index of at least 0.040; a fiber structure using said polyvinyl alcohol-based fiber; and a method for producing said polyvinyl alcohol-based fiber.

IPC Classes  ?

  • D01F 6/34 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated alcohols, acetals, or ketals as the major constituent

29.

WATER-SOLUBLE FILM AND PACKAGING

      
Application Number 18003793
Status Pending
Filing Date 2021-06-14
First Publication Date 2023-08-10
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Okamoto, Minoru
  • Shimizu, Sayaka
  • Kazeto, Osamu

Abstract

[Problem to be solved] To provide a water-soluble film that is excellent in high-speed printability and moisture resistance. [Problem to be solved] To provide a water-soluble film that is excellent in high-speed printability and moisture resistance. [Solution] A water-soluble film containing a polyvinyl alcohol resin, wherein the water-soluble film has a surface on at least one side in which an abundance ratio of carbon-oxygen single bond (C—O) in all carbon element bonds obtained by X-ray photoelectron spectroscopy is in the range of 75 to 85%.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • C08J 3/28 - Treatment by wave energy or particle radiation

30.

Gas Barrier Resin Composition, Method for Producing Gas Barrier Resin Composition, and Molded Product

      
Application Number 18012792
Status Pending
Filing Date 2021-06-29
First Publication Date 2023-08-10
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Nakaya, Masakazu
  • Oshita, Mizuko

Abstract

Provided are: a gas barrier resin composition having sufficient long-run workability and superior gas barrier properties which compare favorably to those of fossil fuel-derived resins, while containing a biomass-derived raw material; a multilayer structure in which the gas barrier resin is used; and a method for producing such a gas barrier resin composition. The gas barrier resin composition contains at least one type of saponified ethylene-vinyl ester copolymer, wherein of ethylene and a vinyl ester, which are raw materials of the at least one type of saponified ethylene-vinyl ester copolymer, a part is derived from biomass, and a remainder is derived from a fossil fuel.

IPC Classes  ?

  • C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
  • C08F 210/02 - Ethene
  • C08F 218/08 - Vinyl acetate
  • C08L 31/04 - Homopolymers or copolymers of vinyl acetate
  • C08J 3/00 - Processes of treating or compounding macromolecular substances
  • C08J 3/20 - Compounding polymers with additives, e.g. colouring
  • C08J 5/18 - Manufacture of films or sheets
  • C08J 7/048 - Forming gas barrier coatings
  • C08J 7/06 - Coating with compositions not containing macromolecular substances
  • B65D 65/40 - Applications of laminates for particular packaging purposes

31.

MULTILAYER LAMINATE

      
Application Number JP2023002866
Publication Number 2023/149397
Status In Force
Filing Date 2023-01-30
Publication Date 2023-08-10
Owner KURARAY CO., LTD. (Japan)
Inventor Muguruma, Shinichi

Abstract

Provided is a multilayer laminate in which haze and transmittance can be adjusted as appropriate. A multilayer laminate (1) according to one aspect of the present invention is a multilayer laminate obtained by laminating at least: a substrate (11); a first dimming layer (21) including liquid crystal molecules of which the alignment states change according to an applied voltage; and a second dimming layer (22) including a photochromic material.

IPC Classes  ?

  • G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
  • B60J 3/04 - Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
  • E06B 9/24 - Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance
  • G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
  • G02F 1/17 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups

32.

POLISHING LAYER, POLISHING PAD, METHOD FOR MANUFACTURING POLISHING PAD, AND POLISHING METHOD

      
Application Number JP2023003092
Publication Number 2023/149434
Status In Force
Filing Date 2023-01-31
Publication Date 2023-08-10
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sunayama Azusa
  • Goshi Yuko
  • Kato Mitsuru

Abstract

A polishing layer containing polyurethane, the elongation at break of the polyurethane at a tension speed of 50mm/min after undergoing 50°C water-based saturation swelling being less than 100%; a polishing pad comprising said polishing layer and a method for manufacturing the polishing pad; and a polishing method using the polishing pad.

IPC Classes  ?

  • B24B 37/24 - Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
  • C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting

33.

MODIFIED VINYL ALCOHOL POLYMER, AQUEOUS SOLUTION, AND METHOD FOR PRODUCING MODIFIED VINYL ALCOHOL POLYMER

      
Application Number 18013063
Status Pending
Filing Date 2021-06-28
First Publication Date 2023-08-03
Owner KURARAY CO., LTD. (Japan)
Inventor Nii, Shinsuke

Abstract

Provided is a modified vinyl alcohol polymer which is superior in water solubility, viscosity stability of an aqueous solution thereof, and water resistance of a film thereof. The modified vinyl alcohol polymer has a group represented by the following formula (1). In the formula (1), R1 represents: an alkyl group having 1 to 8 carbon atoms; an alkoxy group having an alkyl group having 1 to 8 carbon atoms; a hydroxy group; or a group represented by -OM, wherein M represents an alkali metal or an alkaline earth metal, R2 represents a group including a siloxane structure, and n is an integer of 1 to 3. Provided is a modified vinyl alcohol polymer which is superior in water solubility, viscosity stability of an aqueous solution thereof, and water resistance of a film thereof. The modified vinyl alcohol polymer has a group represented by the following formula (1). In the formula (1), R1 represents: an alkyl group having 1 to 8 carbon atoms; an alkoxy group having an alkyl group having 1 to 8 carbon atoms; a hydroxy group; or a group represented by -OM, wherein M represents an alkali metal or an alkaline earth metal, R2 represents a group including a siloxane structure, and n is an integer of 1 to 3.

IPC Classes  ?

34.

METHOD FOR MANUFACTURING RESIN SHEET BY USING 3D PRINTER, AND POLISHING PAD HAVING POLISHING LAYER OBTAINED THEREBY

      
Application Number JP2023002861
Publication Number 2023/145933
Status In Force
Filing Date 2023-01-30
Publication Date 2023-08-03
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kato Mitsuru
  • Sugioka Takashi

Abstract

The present invention relates to: a method for manufacturing a resin sheet, the method comprising at least step P for deforming a sheet-shaped resin modeled article formed by a 3D printer to obtain a compressed sheet by applying pressure (p) to the sheet-shaped resin modeled article while heating the sheet-shaped resin modeled article; and a polishing pad having a polishing layer obtained by using said manufacturing method.

IPC Classes  ?

  • B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
  • B24D 11/00 - Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 80/00 - Products made by additive manufacturing
  • B24B 37/24 - Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
  • B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
  • B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
  • B29C 64/209 - Heads; Nozzles
  • B29C 64/379 - Handling of additively manufactured objects, e.g. using robots
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting

35.

ANTENNA SYSTEM, AND MANUFACTURING METHOD AND DESIGN METHOD FOR SAME

      
Application Number JP2023001227
Publication Number 2023/140261
Status In Force
Filing Date 2023-01-17
Publication Date 2023-07-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ikeda, Keisuke
  • Sunamoto, Tatsuya
  • Onodera, Minoru

Abstract

nnminnnminnn).

IPC Classes  ?

  • H01Q 1/40 - Radiating elements coated with, or embedded in, protective material
  • H01Q 1/22 - Supports; Mounting means by structural association with other equipment or articles
  • H01Q 1/32 - Adaptation for use in or on road or rail vehicles

36.

THERMOPLASTIC ELASTOMER COMPOSITION, LAMINATE STRUCTURE AND METHOD FOR PRODUCING SAID LAMINATE STRUCTURE

      
Application Number 17919816
Status Pending
Filing Date 2021-04-08
First Publication Date 2023-07-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kawahara, Moe
  • Akai, Makoto
  • Konishi, Daisuke
  • Sasaki, Hiromitsu

Abstract

A thermoplastic elastomer composition including an acrylic block copolymer (I) and a hydrogenated block copolymer (II). The content of the acrylic block copolymer (I) is 70 to 300 parts by mass with respect to 100 parts by mass of the hydrogenated block copolymer (II); the hydrogenated block copolymer (II) is a hydrogenated product of a block copolymer (P) including a polymer block (A1) containing structural units derived from an aromatic vinyl compound, and a polymer block (B1) containing 1 to 100 mass % of structural units (b1) derived from farnesene and 99 to 0 mass % of structural units (b2) derived from a conjugated diene other than farnesene, the mass ratio [(A1)/(B1)] of the polymer block (A1) to the polymer block (B1) being 1/99 to 70/30; and the hydrogenation ratio of carbon-carbon double bonds in the polymer block (B1) is 50 to 100 mol %.

IPC Classes  ?

  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives

37.

CURABLE RESIN COMPOSITION, ADHESIVE, MOLDING MATERIAL, CURED ARTICLE

      
Application Number JP2023001941
Publication Number 2023/140382
Status In Force
Filing Date 2023-01-23
Publication Date 2023-07-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Umeda, Yasunari
  • Nakamura, Kimitoshi

Abstract

The objective of the present invention is to provide: a curable resin composition that has high dispersibility of acrylic rubber particles in a curable resin and can provide a cured article with excellent appearance; an adhesive; a molding material; and a cured article. Provided is a curable resin composition comprising a curable resin (A) and acrylic rubber particles (B), wherein the acrylic rubber particles (B) each has: a multilayer structure of two or more layers including an inner layer containing a crosslinked rubber polymer having an acrylate ester unit; and an outermost layer containing a rigid polymer, and wherein the outermost layer of the acrylic rubber particles (B) has a thickness of 3.5 nm or more. Also provided are an adhesive and a curing agent each comprising the curable resin composition, and a cured article of the curable resin composition.

IPC Classes  ?

  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
  • C08L 63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins

38.

BLOCK COPOLYMER, METHOD FOR PRODUCING SAME, AND ABSORBER AND ABSORBENT ARTICLE USING SAME

      
Application Number 18000970
Status Pending
Filing Date 2021-06-07
First Publication Date 2023-07-20
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Takayama, Takumi
  • Maekawa, Kazuhiko
  • Mishima, Kazutoshi

Abstract

A block copolymer (A) including a vinyl alcohol-based polymer block (b) and an ionic polymer block (c) containing a monomer unit with an ionic group forming a salt and a vinyl alcohol-based monomer unit. The ionic group is a carboxylic acid group, a sulfonic acid group, or an ammonium group. The vinyl alcohol-based polymer block (b) has a number-average molecular weight (Mnb) from 15,000 to 220,000. The ionic polymer block (c) has a content of the vinyl alcohol-based monomer unit from 5 to 95 mol % based on the total monomer units. The block copolymer (A) has a number-average molecular weight (MnA) from 20,000 to 440,000. A ratio (Mnb/MnA) of the number-average molecular weight (Mnb) to the number-average molecular weight (MnA) is from 0.1 to 0.9.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • C08F 297/02 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
  • B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • A61L 15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
  • A23L 3/3517 - Carboxylic acid esters

39.

SPACE FILLING MATERIAL, METHOD FOR MANUFACTURING SAME, AND SPACE FILLING STRUCTURE

      
Application Number 18118170
Status Pending
Filing Date 2023-03-07
First Publication Date 2023-07-20
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Katsuya, Satoshi
  • Mitsumori, Haruna
  • Endo, Ryokei
  • Tsunofuri, Shohei
  • Yoshida, Tsugumi

Abstract

Provided is a space filling material having excellent strength in reinforcing a predetermined space to be filled with the space filling material and/or strength in fixing a material to be fixed therewith. The space filling material (11) includes reinforcing fibers and a thermoplastic resin, wherein the reinforcing fibers form a plurality of intersections at least a part of which are bonded with the thermoplastic resin, and among all of the reinforcing fibers, a proportion in volume of reinforcing fibers each having a bent ratio of 1.004 or higher is 20 vol % or more relative to a total volume of the reinforcing fibers, the bent ratio being defined as a ratio of fiber length/shortest distance between opposite ends of fiber. The space filling material (11) expands to fill a predetermined space (13) when the thermoplastic resin is softened by heating to release bending loads of the reinforcing fibers.

IPC Classes  ?

  • D21H 13/20 - Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D04H 1/4218 - Glass fibres
  • D04H 1/55 - Polyesters
  • D04H 1/732 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
  • D04H 1/587 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
  • D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-side; Mixed fibres
  • D21H 13/40 - Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool or glass fibres

40.

COMPOSITE MATERIAL AND METHOD OF MANUFACTURING THE SAME

      
Application Number JP2022048289
Publication Number 2023/132307
Status In Force
Filing Date 2022-12-27
Publication Date 2023-07-13
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kusudo, Kazumasa
  • Aso, Yoshifumi
  • Katsuya, Satoshi

Abstract

Provided is a composite material that is useful as a reinforcing member, and the like. This composite material comprises at least: a fabric including, as a yarn, a filament having a tensile elasticity of 20 GPa or more; and a thermoplastic elastomer resin. The thermoplastic elastomer resin passes from one surface of the fabric, through an opening in the fabric, and is exposed to the other surface thereof.

IPC Classes  ?

  • B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
  • D03D 1/00 - Woven fabrics designed to make specified articles
  • D03D 15/292 - Conjugate, i.e. bi- or multicomponent, fibres or filaments
  • D03D 15/56 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
  • B29K 105/10 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns oriented

41.

POLYESTER AND MOLDED ARTICLE COMPRISING SAME

      
Application Number JP2023000021
Publication Number 2023/132334
Status In Force
Filing Date 2023-01-04
Publication Date 2023-07-13
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Matsugi, Hiroshi
  • Sakano, Takeshi

Abstract

A polyester according to the present invention contains 0.001-0.2 mol% of a unit derived from a compound represented by formula (I). Said polyester has non-Newtonian properties suitable for extrusion molding, etc., and inhibits coloring or generation of a gel compared to other resins despite polycondensation being performed at high temperatures. Moreover, this polyester is highly safe. [In formula (I), the total of x, y, z, and w is 1-50, and R1-R4 each independently represent a hydrogen atom or an acyl group having 1-18 carbons atoms.]

IPC Classes  ?

  • C08G 63/00 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule

42.

Resin Composition, and Aqueous Coating Fluid and Multilayer Structure Each Comprising Same

      
Application Number 17928040
Status Pending
Filing Date 2021-05-28
First Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kobayashi, Kenichi
  • Konishi, Hiroyuki
  • Watajima, Akihisa
  • Adachi, Makoto

Abstract

A resin composition comprises: a modified vinyl alcohol-based polymer (A) containing from 1 to 20 mol % of a structural unit represented by a formula (1) below; and a layered inorganic compound (B). Such a resin composition is excellent in water vapor barrier properties, recyclability, and productivity during coating. A resin composition comprises: a modified vinyl alcohol-based polymer (A) containing from 1 to 20 mol % of a structural unit represented by a formula (1) below; and a layered inorganic compound (B). Such a resin composition is excellent in water vapor barrier properties, recyclability, and productivity during coating.

IPC Classes  ?

  • C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08K 3/34 - Silicon-containing compounds
  • C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

43.

VINYL ALCOHOL COPOLYMER, RESIN COMPOSITION CONTAINING SAME, AND RESIN MOLDED BODY

      
Application Number JP2022047468
Publication Number 2023/127700
Status In Force
Filing Date 2022-12-22
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Baba, Masahiro
  • Akutagawa, Shinnosuke
  • Ueyama, Shingo
  • Konishi, Hiroyuki

Abstract

A vinyl alcohol copolymer according to the present invention includes a vinyl alcohol constituent unit and a C3-C30 olefin constituent unit vinyl alcohol. This copolymer satisfies at least one among the conditions in which: the difference between the melting point and the lowest heat-sealing temperature is 45 °C or more; and the lowest heat-sealing temperature is 80 °C or less. The copolymer satisfies a predetermined relational expression on the basis of the strength obtained from the ultraviolet absorption detector and the refractive index detector, and the number-average molecular weight, in gel permeation chromatography measurements of said copolymer.

IPC Classes  ?

  • C08F 216/06 - Polyvinyl alcohol
  • C08F 8/12 - Hydrolysis
  • C08F 210/00 - Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

44.

VINYL ALCOHOL COPOLYMER, AND RESIN COMPOSITION AND RESIN MOLDED BODY INCLUDING SAME

      
Application Number JP2022047469
Publication Number 2023/127701
Status In Force
Filing Date 2022-12-22
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Akutagawa, Shinnosuke
  • Baba, Masahiro
  • Konishi, Hiroyuki

Abstract

This vinyl alcohol copolymer includes vinyl alcohol structural units and olefin structural units. In the copolymer, the storage modulus at 140°C according to dynamic viscoelasticity measurement in conformance with JIS K7244-4:1999 is 3.0×105-7.0×107Pa, and the storage modulus at 90°C according to the dynamic viscoelasticity measurement is 3.5×106 Pa or greater.

IPC Classes  ?

  • C08F 216/06 - Polyvinyl alcohol
  • C08F 8/12 - Hydrolysis
  • C08F 210/00 - Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
  • C08J 5/18 - Manufacture of films or sheets
  • C09J 5/00 - Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
  • C09J 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

45.

PHOTOSENSITIVE RESIN COMPOSITION

      
Application Number JP2022047473
Publication Number 2023/127702
Status In Force
Filing Date 2022-12-22
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ueno, Yoshikazu
  • Uehara, Yosuke

Abstract

This photosensitive resin composition comprises a thermoplastic elastomer (A), a liquid farnesene rubber (B), an ethylenic unsaturated compound (C), and a photoinitiator (D).

IPC Classes  ?

  • G03F 7/027 - Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • B41N 1/00 - Printing plates or foils; Materials therefor
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor

46.

POLYVINYL ALCOHOL FILM AND METHOD FOR PRODUCING POLYVINYL ALCOHOL FILM

      
Application Number JP2022048148
Publication Number 2023/127874
Status In Force
Filing Date 2022-12-27
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kobayashi Shinzo
  • Kazeto Osamu
  • Isozaki Takanori

Abstract

The present invention provides: a PVA film which is able to be stretched at a high stretching ratio even at high temperatures; and a method for producing the PVA film. The present invention provides a PVA film which is characterized in that if the heat flow of this PVA film is measured by means of a differential scanning calorimeter in the presence of water, the melting end temperature thereof is not less than 93°C but less than 96°C.

IPC Classes  ?

  • C08J 5/18 - Manufacture of films or sheets
  • G02B 5/30 - Polarising elements
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

47.

THERMOPLASTIC ELASTOMER COMPOSITION, PELLET OF THERMOPLASTIC ELASTOMER COMPOSITION, RESIN COMPOSITION, METHOD FOR PRODUCING THERMOPLASTIC ELASTOMER COMPOSITION, AND METHOD FOR PRODUCING RESIN COMPOSITION

      
Application Number JP2022048275
Publication Number 2023/127895
Status In Force
Filing Date 2022-12-27
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kato, Masahiro
  • Konishi, Daisuke
  • Sasaki, Hiromitsu
  • Tomishima, Yuta
  • Hasegawa, Takumi

Abstract

Provided are a thermoplastic elastomer composition in which the occurrence of bleeding is suppressed, and which is capable of improving grip properties and is suitable for masterbatches, a pellet of the thermoplastic elastomer composition, and a method for producing the thermoplastic elastomer composition. Additionally provided are a resin composition containing the thermoplastic elastomer composition, and a method for producing the resin composition. The thermoplastic elastomer composition comprises: a block copolymer (X) that includes a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, and a polymer block (B) containing a structural unit derived from a conjugated diene compound; and a liquid rubber component (Y). The polymer block (B) includes a polymer block (B-1) containing a structural unit derived from β-farnesene.

IPC Classes  ?

  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08F 297/04 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
  • C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
  • C08K 3/36 - Silica
  • C08L 7/00 - Compositions of natural rubber
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 9/06 - Copolymers with styrene
  • C08L 15/00 - Compositions of rubber derivatives

48.

PELLET OF THERMOPLASTIC ELASTOMER COMPOSITION, RESIN COMPOSITION, METHOD FOR PRODUCING PELLET OF THERMOPLASTIC ELASTOMER COMPOSITION, AND METHOD FOR PRODUCING RESIN COMPOSITION

      
Application Number JP2022048276
Publication Number 2023/127896
Status In Force
Filing Date 2022-12-27
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kato, Masahiro
  • Konishi, Daisuke
  • Sasaki, Hiromitsu
  • Tomishima, Yuta
  • Hasegawa, Takumi

Abstract

Provided is, in a shape (for example, a pellet) that can be handled easily, a thermoplastic elastomer composition that contains liquid rubber and that can be used to manufacture a molded article in which bleeding is suppressed and which exhibits desired mechanical characteristics. This pellet is of a thermoplastic elastomer composition that contains: 100 parts by mass of a block copolymer (X) including a polymeric block (A) that has a structural unit derived from an aromatic vinyl compound and a polymeric block (B) that has a structural unit derived from a conjugated diene compound; and not less than 10 parts by mass but less than 150 parts by mass of a liquid rubber component (Y). An antiblocking agent exists in a state of being in contact with the surface of the pellet. The contained amount of the antiblocking agent, including the amount exiting on the surface of the pellet, is 0.1-1.5 parts by mass with respect to 100 parts by mass of the pellet.

IPC Classes  ?

  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
  • C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
  • C08J 3/215 - Compounding polymers with additives, e.g. colouring in the presence of a liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
  • C08K 3/36 - Silica
  • C08K 5/098 - Metal salts of carboxylic acids
  • C08K 5/20 - Carboxylic acid amides
  • C08L 15/00 - Compositions of rubber derivatives

49.

VINYL ALCOHOL COPOLYMER, PRODUCTION METHOD THEREOF, ANTI-DEHYDRATING AGENT FOR CEMENT SLURRY, AND ANTI-DEHYDRATING METHOD FOR CEMENT SLURRY

      
Application Number 17928011
Status Pending
Filing Date 2021-05-24
First Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ghebremeskel, Ghebrehiwet
  • Morikawa, Keisuke
  • Kaneshima, Takuma

Abstract

A vinyl alcohol copolymer, wherein the vinyl alcohol copolymer includes a vinyl alcohol unit and a constituent unit derived from an unsaturated monomer (A), the unsaturated monomer (A) is at least one selected from the group consisting of an unsaturated carboxylic acid, a salt thereof, an anhydride thereof, and an alkyl ester thereof, a content of the constituent unit derived from the unsaturated monomer (A) with respect to total constituent units of the vinyl alcohol copolymer is 1.00 mol % or more and 5.00 mol % or less, and 70 mol % or more of the constituent unit derived from the unsaturated monomer (A) forms a lactone ring structure.

IPC Classes  ?

  • C08F 216/06 - Polyvinyl alcohol
  • C08K 11/00 - Use of ingredients of unknown constitution, e.g. undefined reaction products

50.

MODIFIED VINYL ALCOHOL POLYMER AND METHOD FOR PRODUCING SAME

      
Application Number JP2022047467
Publication Number 2023/127699
Status In Force
Filing Date 2022-12-22
Publication Date 2023-07-06
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Akutagawa, Shinnosuke
  • Konishi, Hiroyuki
  • Mishima, Kazutoshi

Abstract

12122) ≤ 98

IPC Classes  ?

51.

Kuralpha

      
Application Number 018895278
Status Pending
Filing Date 2023-06-30
Owner Kuraray Co., Ltd. (Japan)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 17 - Rubber and plastic; packing and insulating materials

Goods & Services

Unprocessed artificial and synthetic resins; Unprocessed plastics; Unprocessed acrylic resins; Industrial chemicals; Adhesives for use in industry. Semi-processed acrylic resins; Acrylic rubber; Semi-processed synthetic resins; Plastics in extruded form for use in further manufacturing.

52.

POLYAMIDE COMPOSITION

      
Application Number JP2022046617
Publication Number 2023/120457
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sugai, Naoto
  • Nanya, Atsushi

Abstract

The present invention provides a polyamide composition which exhibits excellent heat resistance and excellent chemical resistance, while having high moldability. This polyamide composition contains a polyamide (A) which contains a diamine unit (X) and a dicarboxylic acid unit (Y), and an organic thermal stabilizer (B); the diamine unit (X) contains not less than 0.1% by mole but less than 36% by mole of a diamine unit (X1); and the diamine unit (X1) is a constituent unit that is derived from an aliphatic diamine which has 6 to 10 carbon atoms, wherein if a carbon atom to which an arbitrary one of the amino groups is bonded is taken to be in the 1-position, an alkyl group having 2 or 3 carbon atoms is bonded to the carbon atom in the 2-position.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/02 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
  • C08K 5/13 - Phenols; Phenolates

53.

POLYAMIDE COMPOSITION

      
Application Number JP2022046620
Publication Number 2023/120460
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sugai, Naoto
  • Nanya, Atsushi

Abstract

According to the present invention, a polyamide composition contains: a polyamide (A) including a diamine unit (X) and a dicarboxylic acid unit (Y); and a halogen-free flame retardant (B), wherein the diamine unit (X) includes at least 0.1 mol% and less than 36 mol% of a diamine unit (X1), and the diamine unit (X1) is a structural unit derived from an aliphatic diamine having 6-10 carbon atoms and having a C2-3 alkyl group bonded to the 2-position carbon atom when any one amino group is bonded to the 1-position carbon atom.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'

54.

POLYAMIDE COMPOSITION AND MOLDED ARTICLE

      
Application Number JP2022046623
Publication Number 2023/120463
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sekiguchi, Kenji
  • Takeda, Hideaki
  • Nanya, Atsushi

Abstract

The present invention provides: a polyamide composition which exhibits excellent heat resistance and toughness, while having high moldability; and a molded article which is formed of this polyamide composition. The present invention provides a polyamide composition which contains a polyamide (A) and a polyolefin (B), wherein: the polyamide (A) contains a diamine unit (X) and a dicarboxylic acid unit (Y); the diamine unit (X) contains not less than 0.1% by mole but less than 36% by mole of a diamine unit (X1); the diamine unit (X1) is a constituent unit that is derived from an aliphatic diamine which has 6 to 10 carbon atoms, wherein if a carbon atom to which an arbitrary one of the amino groups is bonded is taken to be in the 1-position, an alkyl group having 2 or 3 carbon atoms is bonded to the carbon atom in the 2-position; and the content of the polyolefin (B) in the polyamide composition is not less than 2% by mass but less than 40% by mass.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L 23/26 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment

55.

METHOD FOR PRODUCING MODIFIED ETHYLENE-VINYL ALCOHOL COPOLYMER AND RESIN COMPOSITION INCLUDING SAME

      
Application Number JP2022047645
Publication Number 2023/120705
Status In Force
Filing Date 2022-12-23
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Somemiya, Kazuyuki
  • Morihara, Yasushi

Abstract

A method for producing a modified ethylene-vinyl alcohol copolymer (C), the method including reacting an ethylene-vinyl alcohol copolymer (A) and a C2-8 monovalent epoxy compound (B) through melt kneading in an extruder using a catalyst solution (D) that is an acetone solution containing zinc ions (F) and sulfonate ions. In this method, it is preferable to use 0.05-1.0 μmol/g of zinc ions (F) in terms of the number of mol relative to the mass of the ethylene-vinyl alcohol copolymer (A). Also, it is preferable to add a mixture of the monovalent epoxy compound (B) and the catalyst solution (D) to the molten ethylene-vinyl alcohol copolymer (A). There is thereby provided a method for producing modified EVOH having exceptional melt stability as well as exceptional barrier properties, stretchability, and the like.

IPC Classes  ?

  • C08F 8/08 - Epoxidation
  • C08F 216/14 - Monomers containing only one unsaturated aliphatic radical
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08L 29/10 - Homopolymers or copolymers of unsaturated ethers

56.

KURALPHA

      
Serial Number 98064501
Status Pending
Filing Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 17 - Rubber and plastic; packing and insulating materials

Goods & Services

Unprocessed artificial and synthetic resins; unprocessed plastics; unprocessed acrylic resins; industrial chemicals; adhesives for use in industry Semi-processed acrylic resins; acrylic rubber; semi-processed synthetic resins; plastics in extruded form for use in further manufacturing

57.

RESIN COMPOSITION AND PURGING AGENT USING SAME, AND MOLDING MACHINE PURGING METHOD

      
Application Number JP2022046107
Publication Number 2023/120338
Status In Force
Filing Date 2022-12-14
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor Suzuki, Makoto

Abstract

A resin composition according to the present invention contains a hydrophilic resin (A), water (B), a basic compound (C), and a polyolefin resin (D). The content of the water (B) is 10-70 parts by mass to 100 parts by mass of the hydrophilic resin (A), the content of the basic compound (C) is 0.1-15 parts by mass to 100 parts by mass of the hydrophilic resin (A), and the polyolefin resin (D) satisfies the following formula (1): (1): 30>X×Y÷(1-Z)≥1 In formula (1), X is the MFR (g/10 min) at 190°C of the polyolefin resin (D), Y is the relaxation time (seconds) of the polyolefin resin (D) at 220°C, and Z is the density (g/cm3) of the polyolefin resin (D).

IPC Classes  ?

  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • B29C 48/27 - Cleaning; Purging; Avoiding contamination
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

58.

POLYAMIDE COMPOSITION

      
Application Number JP2022046616
Publication Number 2023/120456
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sugai, Naoto
  • Nanya, Atsushi

Abstract

The present invention provides a polyamide composition which exhibits excellent heat resistance and excellent chemical resistance, while having high moldability. This polyamide composition contains a polyamide (A) which contains a diamine unit (X) and a dicarboxylic acid unit (Y), a copper compound (B1) and a metal halide (B2); the diamine unit (X) contains not less than 0.1% by mole but less than 36% by mole of a diamine unit (X1); and the diamine unit (X1) is derived from an aliphatic diamine which has 6 to 10 carbon atoms, wherein if a carbon atom to which an arbitrary one of the amino groups is bonded is taken to be in the 1-position, an alkyl group having 2 or 3 carbon atoms is bonded to the carbon atom in the 2-position.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08K 3/16 - Halogen-containing compounds
  • C08K 3/24 - Acids; Salts thereof

59.

POLYAMIDE COMPOSITION

      
Application Number JP2022046618
Publication Number 2023/120458
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Itoi, Yuichi
  • Takeda, Hideaki
  • Nanya, Atsushi

Abstract

The present invention provides a polyamide composition that has high moldability, excellent heat resistance, high mechanical strength, and low anisotropy. Provided is a polyamide composition comprising a polyamide (A) and an inorganic filler (B), wherein: the polyamide (A) includes a diamine unit (X) and a dicarboxylic acid unit (Y); the diamine unit (X) contains not less than 0.1 mol% but less than 36 mol% of a diamine unit (X1); the diamine unit (X1) is a structural unit derived from an aliphatic diamine in which, when position 1 is defined as a carbon atom to which an arbitrary amino group is bonded, an alkyl group having a carbon number of 2 or 3 is bonded to the carbon atom at position 2, and the carbon number thereof is 6-10; and the aspect ratio of the inorganic filler (B) in the polyamide composition is 1-22.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/02 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 7/02 - Fibres or whiskers

60.

POLYAMIDE COMPOSITION

      
Application Number JP2022046619
Publication Number 2023/120459
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sugai, Naoto
  • Nanya, Atsushi

Abstract

The present invention provides a polyamide resin containing a polyamide (A) that contains a diamine unit (X) and a dicarboxylic acid unit (Y), and a halogen-based flame retardant (B). The diamine unit (X) contains from 0.1 mol% to less than 36 mol% of a diamine unit (X1), and the diamine unit (X1) is a structural unit derived from a C6–10 aliphatic diamine in which, taking the carbon atom to which any one amino group is bonded as position 1, a C2 or C3 alkyl group is bonded to the carbon atom at position 2.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/02 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
  • C08L 25/18 - Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen

61.

POLYAMIDE COMPOSITION

      
Application Number JP2022046621
Publication Number 2023/120461
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor Nanya, Atsushi

Abstract

The present invention provides a polyamide composition which contains a polyamide (A) and a fibrous filler (B), wherein: the polyamide (A) contains a diamine unit (X) and a dicarboxylic acid unit (Y); the diamine unit (X) contains not less than 0.1% by mole but less than 36% by mole of a diamine unit (X1); and the diamine unit (X1) is a constituent unit that is derived from an aliphatic diamine which has 6 to 10 carbon atoms, wherein if a carbon atom to which an arbitrary one of the amino groups is bonded is taken to be in the 1-position, an alkyl group having 2 or 3 carbon atoms is bonded to the carbon atom in the 2-position.

IPC Classes  ?

  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
  • C08G 69/02 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids
  • C08K 7/02 - Fibres or whiskers

62.

COMPLEX

      
Application Number JP2022046622
Publication Number 2023/120462
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor Nanya, Atsushi

Abstract

This complex includes a polyamide (A) and a continuous fiber (B). The polyamide (A) comprises a diamine unit (X) and a dicarboxylic acid unit (Y). The diamine unit (X) includes a diamine unit (X1) in an amount of 0.1 mol% or more but less than 36 mol%. The diamine unit (X1) is a structural unit derived from an aliphatic diamine which has 6 to 10 carbon atoms and in which, if a carbon atom to which either one of the amino groups is bonded is taken to be at the 1-position, an alkyl group having 2 or 3 carbon atoms is bonded to the carbon atom at the 2-position.

IPC Classes  ?

  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08K 7/02 - Fibres or whiskers
  • C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids

63.

MULTI-LAYER FILM, AND MULTI-LAYER STRUCTURE USING SAME

      
Application Number JP2022047364
Publication Number 2023/120642
Status In Force
Filing Date 2022-12-22
Publication Date 2023-06-29
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kitamura, Masahiro
  • Muramoto, Takuya
  • Yoshida, Kentaro

Abstract

Provided is a multi-layer film which has a layer (X) serving as the outermost layer and in which at least the layer (X), a layer (Y), and a layer (Z) are laminated adjacent to each other in this order, wherein: the layer (X) comprises a resin composition (A) that contains, as the main component thereof, a modified ethylene-vinyl alcohol copolymer (a) which has been modified by an epoxy compound and the melting point of which is not less than 110°C but less than 150°C; the layer (Y) contains, as the main component thereof, an adhesive resin (B), the melting point of which is less than 150°C; the layer (Z) contains, as the main component thereof, a polyethylene resin (C), the melting point of which is less than 150°C; and the resin composition (A) contains 20-1,500 ppm of alkali metal ions (b). This multi-layer film is excellent in terms of external appearance, interlayer adhesiveness, gas barrier properties, and blocking resistance, even while having as the outermost layer thereof a modified EVOH that has been modified with an epoxy compound.

IPC Classes  ?

  • B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
  • B29B 17/04 - Disintegrating plastics
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C 55/04 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B65D 65/40 - Applications of laminates for particular packaging purposes

64.

Purging Agent and Method for Purging Molding Machine Using Same

      
Application Number 17630251
Status Pending
Filing Date 2020-05-19
First Publication Date 2023-06-22
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ito, Yu
  • Okamoto, Makoto
  • Suzuki, Makoto

Abstract

A purging agent of the present invention contains a resin composition containing a hydrophilic resin (A), water (B), and a basic compound (C). The mass ratio (A)/(B) of the hydrophilic resin (A) to the water (B) is 66/34 to 90/10, and the content of the basic compound (C) is 0.25 to 7 parts by mass with respect to 100 parts by mass of the hydrophilic resin (A).

IPC Classes  ?

  • C08L 31/04 - Homopolymers or copolymers of vinyl acetate
  • B29C 45/17 - Component parts, details or accessories; Auxiliary operations
  • C08K 3/26 - Carbonates; Bicarbonates

65.

HIGH-MOLECULAR ACRYLIC TRIBLOCK COPOLYMER AND ADHESIVE COMPOSITION INCLUDING THE SAME

      
Application Number 17905048
Status Pending
Filing Date 2021-02-25
First Publication Date 2023-06-22
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Takasaki, Tomoe
  • Ono, Tomohiro

Abstract

An acrylic block copolymer having excellent holding power and high processability, and an adhesive composition which includes the copolymer and satisfies both of the above properties. An acrylic triblock copolymer including a polymer block (A) of methacrylic acid ester units, and a polymer block (B) of 95 mass % or more of acrylic acid ester units represented by the general formula (1): CH2═CH—COOR1, wherein R1 denotes a C7-C12 organic group, and the copolymer has a triblock structure (A)-(B)-(A) and a weight average molecular weight (Mw) of 110,000 to 250,000, and a total content of the blocks (A) at both ends is 18 mass % or less.

IPC Classes  ?

  • C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
  • C09J 133/08 - Homopolymers or copolymers of acrylic acid esters

66.

POLYVINYL ALCOHOL FIBER AND METHOD FOR PRODUCING SAME

      
Application Number JP2022045689
Publication Number 2023/112895
Status In Force
Filing Date 2022-12-12
Publication Date 2023-06-22
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Hirotani Ran
  • Koizumi Satoshi
  • Koga Nobuhiro
  • Tsujimoto Takuya

Abstract

ABABB represents the degree of saponification of the polyvinyl alcohol B.

IPC Classes  ?

  • D01F 6/50 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyalcohols, polyacetals or polyketals
  • D01F 6/34 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated alcohols, acetals, or ketals as the major constituent
  • D04H 3/007 - Addition polymers

67.

CARBONACEOUS MATERIAL, METHOD FOR PRODUCING SAME, AND ELECTROCHEMICAL DEVICE

      
Application Number 17918356
Status Pending
Filing Date 2021-04-19
First Publication Date 2023-06-22
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Arima, Junichi
  • Yamabata, Akinori
  • Okuno, Taketoshi
  • Tago, Shinya

Abstract

The present invention relates to a carbonaceous material having a pore volume determined by performing Grand Canonical Monte Carlo simulation on an adsorption-desorption isotherm of carbon dioxide of 0.05 cm3/g or more and 0.20 cm3/g or less, and a ratio of desorption amount to adsorption amount (desorption amount/adsorption amount) at a relative pressure of 0.01 in the adsorption-desorption isotherm of 1.05 or more.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • C01B 32/342 - Preparation characterised by non-gaseous activating agents
  • C01B 32/318 - Preparation characterised by the starting materials

68.

MULTILAYER FILM, MULTILAYER STRUCTURE, PACKAGING MATERIAL, RECOVERY COMPOSITION, AND METHOD FOR RECOVERING MULTILAYER FILM OR MULTILAYER STRUCTURE

      
Application Number JP2022045916
Publication Number 2023/112929
Status In Force
Filing Date 2022-12-13
Publication Date 2023-06-22
Owner KURARAY CO., LTD. (Japan)
Inventor Yoshida Kentaro

Abstract

This multilayer film has: a barrier layer (A) containing as the main component thereof an ethylene-vinyl alcohol copolymer (a) having an ethylene unit content of 20-50 mol% and a degree of saponification of at least 90 mol%; an adhesive layer (B) containing as the main component thereof an adhesive resin (b); and a hot melt bonding layer (C) containing as the main component thereof an ethylene-α-olefin copolymer resin (c) that has a density of 0.880-0.920 g/cm3. The multilayer film does not have: a layer containing as the main component thereof a resin having a melting point of 200°C or more; or a metal layer having a thickness of 1 µm or more. The hot melt bonding layer (C) contains 100-7,000 ppm of a higher fatty acid amide compound (d) that has a melting point of 60-120°C.

IPC Classes  ?

  • B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
  • B65D 65/40 - Applications of laminates for particular packaging purposes

69.

MODIFIED HYDROGENATED BLOCK COPOLYMER AND RESIN COMPOSITION

      
Application Number JP2022046282
Publication Number 2023/112996
Status In Force
Filing Date 2022-12-15
Publication Date 2023-06-22
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kato, Masahiro
  • Senda, Yasushi
  • Satani, Ryo

Abstract

Provided is a modified product of a hydrogenated product of a block copolymer in which a resin composition having an excellent balance of mechanical properties such as tensile strength, tensile strain at break, and impact resistance can be obtained by addition. A modified hydrogenated product of a block copolymer includes a polymer block containing a structural unit derived from an aromatic vinyl compound and a polymer block containing a structural unit derived from a conjugated diene compound, wherein: the conjugated diene compound contains isoprene and a conjugated diene compound other than isoprene; the vinyl bonding amount of the polymer block is at most 30 mol%; and the modified hydrogenated product has one or more functional groups selected from among an alkoxysilyl group, a carboxy group, an amino group, a hydroxy group, an epoxy group, and an acid anhydride-derived group, has a peak top intensity of loss tangent of at most 0.95, and has a melt flow rate (MFR) of at least 0.5 g/10 min.

IPC Classes  ?

  • C08F 8/04 - Reduction, e.g. hydrogenation
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

70.

NAPPED ARTIFICIAL LEATHER AND METHOD FOR PRODUCING NAPPED ARTIFICIAL LEATHER

      
Application Number JP2022044801
Publication Number 2023/106272
Status In Force
Filing Date 2022-12-06
Publication Date 2023-06-15
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Iwamoto, Akihisa
  • Meguro, Masashi
  • Hishida, Hiroyuki

Abstract

Provided is napped artificial leather that makes it possible to suppress spontaneous elongation during the manufacturing process and set the constant load elongation horizontal/vertical ratio to an appropriate value without a scrim or lining, and that has excellent pilling resistance and appearance, and also provided is a method for producing the napped artificial leather. The napped artificial leather includes a nonwoven fabric that is an entangled body of ultrafine fibers and a polymer elastic body attached to the nonwoven fabric, and has a napped surface on which the ultrafine fibers are raised on at least one surface, the napped artificial leather satisfying the following conditions (1) and (2). (1) The nonwoven fabric is made of ultrafine polyester filaments. (2) The fiber density D1 in the horizontal direction is 150-450 fibers/mm2, the fiber density D2 in the vertical direction is 150-450 fibers/mm2, and D1/D2 is 0.7-1.1.

IPC Classes  ?

  • D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • D04H 3/011 - Polyesters
  • D04H 3/016 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness

71.

INORGANIC/ORGANIC COMPOSITE, AEROGEL PRODUCTION INTERMEDIATE, AND PRODUCTION METHOD FOR AEROGEL

      
Application Number JP2022045391
Publication Number 2023/106386
Status In Force
Filing Date 2022-12-09
Publication Date 2023-06-15
Owner KURARAY CO., LTD. (Japan)
Inventor Muguruma, Shinichi

Abstract

The present disclosure provides a production method for an aerogel that makes it possible to efficiently dry a wet gel at low cost without the need for an expensive apparatus and to suppress shrinkage and associated cracking during the drying of the wet gel. This production method for an aerogel includes a step (S1) for preparing a starting material liquid that includes a metal compound and at least one type of solvent selected from the group that consists of water and water-soluble solvents, a step (S2) for performing a condensation reaction on the metal compound in the starting material liquid to generate a wet gel in which the solvent is present in the pores of an aerogel, a step (S3) for substituting a polymerizable liquid material for the solvent in the pores of the wet gel, a step (S4) for polymerizing the polymerizable liquid material in the pores of the wet gel to generate an inorganic/organic composite in which a polymer is present in the pores of an aerogel, and a step (S5) for decomposing and thereby removing the polymer in the pores of the inorganic/organic composite.

IPC Classes  ?

  • C01B 33/16 - Preparation of silica xerogels
  • C08F 283/12 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polysiloxanes
  • C08G 77/04 - Polysiloxanes
  • C08L 83/04 - Polysiloxanes
  • C08L 85/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon; Compositions of derivatives of such polymers
  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
  • C08J 9/42 - Impregnation with macromolecular compounds

72.

ADDITIVE FOR ELECTROCHEMICAL ELEMENT POSITIVE ELECTRODE, COMPOSITION FOR ELECTROCHEMICAL ELEMENT POSITIVE ELECTRODE INCLUDING SAID ADDITIVE, AND ELECTROCHEMICAL ELEMENT

      
Application Number 17912096
Status Pending
Filing Date 2021-03-12
First Publication Date 2023-06-08
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Tachikawa, Kengo
  • Takayama, Mao
  • Inui, Yoshihisa
  • Nishinami, Hiroyuki
  • Nishita, Yumika
  • Nishimura, Shushi

Abstract

The present invention relates to an additive for an electrochemical element positive electrode comprising an activated carbon, wherein the activated carbon has a specific surface area in accordance with BET method of 1300-2500 m2/g, a pore volume of pores having a diameter of 2 nm or more of 0.35 cm3/g or less, a pore volume of pores having a diameter less than 2 nm of 0.5 cm3/g or more, and an ash content of 0.5% by weight or less.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • C01B 32/318 - Preparation characterised by the starting materials
  • C01B 32/336 - Preparation characterised by gaseous activating agents
  • C01B 32/378 - Purification
  • H01G 11/34 - Carbon-based characterised by carbonisation or activation of carbon

73.

CELL CULTURE METHOD USING SERUM-FREE CULTURE MEDIUM

      
Application Number JP2022044352
Publication Number 2023/100974
Status In Force
Filing Date 2022-12-01
Publication Date 2023-06-08
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Yamazaki, Satoshi
  • Fujita, Akio
  • Kobayashi, Goro
  • Ayano, Satoru

Abstract

The problem to be solved by the present invention is to provide a method which makes it possible to culture anchorage-dependent cells with a serum-free culture medium. The present invention provides a cell culture method including a step for culturing cells with a serum-free culture medium while adhering the cells to a crosslinked product of a water-soluble polymer that is compounded with a cell adhesion factor.

IPC Classes  ?

  • C12N 5/07 - Animal cells or tissues
  • C07K 17/00 - Carrier-bound or immobilised peptides; Preparation thereof

74.

ADDITIVE FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL DEVICE, COMPOSITION FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL DEVICE, POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING SAME

      
Application Number 17921650
Status Pending
Filing Date 2021-04-28
First Publication Date 2023-05-25
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Tachikawa, Kengo
  • Takayama, Mao
  • Kobayashi, Shohei
  • Inui, Yoshihisa
  • Nishimura, Shushi

Abstract

The present invention relates to an additive for an electrochemical device positive electrode comprising a porous carbon material, wherein the porous carbon material has a pore volume of pores having a diameter of 2 nm or more of 0.25 cm3/g or more, a pore volume of pores having a diameter of less than 2 nm of 0.5 cm3/g or less, and an ash content of 0.5% by weight or less.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

75.

Multilayer Structure, Method for Producing Same, Sheet for Preventing Diffusion of Hazardous Substances, Landfill Geomembrane, and Multilayer Pipe

      
Application Number 17921013
Status Pending
Filing Date 2021-04-13
First Publication Date 2023-05-25
Owner
  • KURARAY CO., LTD. (Japan)
  • MITSUI CHEMICALS, INC. (Japan)
Inventor
  • Hata, Kazuhira
  • Oshita, Tatsuya
  • Shiga, Ryohei

Abstract

Provided are: a multilayer structure having a strong initial interlayer adhesive force, with a decrease of the interlayer adhesive force being prevented even in a case of use in a harsh environment such as exposure to hot water, an acid, or an alkali for a long period of time; a method for producing such a multilayer structure; and a sheet for preventing diffusion of hazardous substances, a landfill geomembrane, and a multilayer pipe, each including such a multilayer structure. A multilayer structure includes: one or a plurality of layer (A) constituted from a resin composition (A) containing an ethylene-vinyl alcohol copolymer (a) as a principal component; and one or a plurality of layer (B) constituted from a resin composition (B) containing a modified polyolefin (b) which has a basic nitrogen-containing group, wherein the ethylene-vinyl alcohol copolymer (a) has at least one of a carboxy group and a lactone ring, and a total amount of the carboxy group and the lactone ring with respect to a total amount of an ethylene unit, a vinyl alcohol unit, and a vinyl ester unit of the ethylene-vinyl alcohol copolymer (a) is 0.08 mol% or more and 0.4 mol% or less.

IPC Classes  ?

  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 7/02 - Physical, chemical or physicochemical properties
  • B32B 1/08 - Tubular products

76.

ELECTRODE AND POWER STORAGE ELEMENT

      
Application Number JP2022042427
Publication Number 2023/090325
Status In Force
Filing Date 2022-11-15
Publication Date 2023-05-25
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Hasenaka, Yuki
  • Tachikawa, Kengo

Abstract

The present invention relates to an electrode which comprises at least graphite, a binder and a non-graphite carbonaceous material. If a half cell is produced using this electrode as a working electrode, an Li foil as a reference electrode, and a solution obtained by dissolving lithium hexafluorophosphate at a concentration of 1 mol/L into a mixed solution of ethylene carbonate, dimethyl carbonate and ethyl methyl carbonate as an electrolyte solution, the mixed solution having an (ethylene carbonate)/(dimethyl carbonate)/(ethyl methyl carbonate) volume ratio of 1/1/1, (A) with respect to a cyclic voltammogram obtained by doping the electrode with lithium until the cell voltage reaches 0.01 V, subsequently sweeping a potential at a sweep rate of 0.01 mV/s toward the reduction side until the cell voltage falls to -0.05 V from +0.01 V and further sweeping a potential toward the oxidation side until the cell voltage reaches +0.5 V by cyclic voltammetry, the ratio (A/B) of the area of the region A described below to the area of the region B described below is 4.0% or more, the areas being calculated on the basis of reference points E1, E2, E3 and E4 described below; and (B) the electrode mixture density at a depth of charge of 50% is 1.30 g/cm3 or more if the capacity at the time when the electrode is doped with lithium until the cell voltage reaches 0.05 V is taken as a depth of charge of 100%. Reference point E1: the point at which the absolute value of the current is minimum within the range of -0.05 V ≤ E1 ≤ 0.01 V on the current-voltage curve on the reduction side Reference point E2: the intersection point of the coordinate axis of the voltage (current is 0 mA) and a tangent line with the maximum slope within the range of -0.05 V ≤ E2 ≤ 0.01 V on the current-voltage curve on the reduction side Reference point E3: the point at which the absolute value of the current is minimum within the range of 0.05 V ≤ E3 ≤ 0.1 V on the current-voltage curve on the oxidation side Reference point E4: the point at which the voltage is 0.3 V on the current-voltage curve on the oxidation side Region A: the region surrounded by the current-voltage curve on the reduction side, a straight line that passes through the reference point E1 and is perpendicular to the coordinate axis of the voltage (current is 0 mA), a straight line that passes through the reference point E2 and is perpendicular to the coordinate axis of the voltage (current is 0 mA), and the coordinate axis of the voltage (current is 0 mA) Region B: the region surrounded by the current-voltage curve on the oxidation side, a straight line that passes through the reference point E3 and is perpendicular to the coordinate axis of the voltage (current is 0 mA), a straight line that passes through the reference point E4 and is perpendicular to the coordinate axis of the voltage (current is 0 mA), and the coordinate axis of the voltage (current is 0 mA)

IPC Classes  ?

  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

77.

REINFORCING FIBERS, METHOD FOR PRODUCING SAME, AND ELASTOMER PRODUCT USING REINFORCING FIBERS

      
Application Number JP2022042147
Publication Number 2023/085412
Status In Force
Filing Date 2022-11-11
Publication Date 2023-05-19
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Asada, Toru
  • Ishida, Eiichi
  • Washitake, Yosuke

Abstract

The present invention provides: reinforcing fibers which use an adhesive component that does not contain resorcinol and formalin, and which exhibit excellent adhesion especially to a rubber adherend that has high polarity; a method for producing the reinforcing fibers; and an elastomer product which uses the reinforcing fibers. The present invention provides reinforcing fibers, each of which has an adhesive layer that is configured from an adhesive component containing a liquid conjugated diene rubber and a crosslinking agent on at least a part of the fiber surface, and which are characterized in that the solubility parameter (SP value) of the liquid conjugated diene rubber as calculated by a Fedors method is larger than 9.0 (cal/cm3)1/2.

IPC Classes  ?

  • D06M 15/693 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
  • B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
  • C09J 11/06 - Non-macromolecular additives organic
  • C09J 109/02 - Copolymers with acrylonitrile
  • D06M 13/17 - Polyoxyalkyleneglycol ethers
  • D06M 13/395 - Isocyanates
  • D06M 15/55 - Epoxy resins

78.

AQUEOUS ADHESIVE, REINFORCEMENT FIBERS USING SAME, AND ELASTOMER PRODUCT USING REINFORCEMENT FIBERS

      
Application Number JP2022042148
Publication Number 2023/085413
Status In Force
Filing Date 2022-11-11
Publication Date 2023-05-19
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Asada, Toru
  • Ishida, Eiichi
  • Washitake, Yosuke

Abstract

The present invention provides: an aqueous adhesive which uses an adhesive component that does not contain resorcinol and formalin, and which exhibits excellent adhesion between fibers and an elastomer, while being capable of suppressing contamination in a production step of reinforcement fibers; reinforcement fibers which use this aqueous adhesive; and an elastomer product which uses the reinforcement fibers. The present invention provides an aqueous adhesive for bonding fibers and an elastomer to each other, the aqueous adhesive being characterized by containing (A) an oil-in-water emulsion which contains a liquid conjugated diene rubber and a surfactant, and (B) an aqueous solution or aqueous dispersion of a crosslinking agent.

IPC Classes  ?

  • D06M 15/693 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
  • B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
  • C09J 11/06 - Non-macromolecular additives organic
  • C09J 109/00 - Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
  • D06M 13/17 - Polyoxyalkyleneglycol ethers
  • D06M 13/395 - Isocyanates
  • D06M 15/55 - Epoxy resins

79.

ADSORPTION FILTER

      
Application Number 17912929
Status Pending
Filing Date 2021-09-21
First Publication Date 2023-05-18
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Takahashi, Keita
  • Hanamoto, Tetsuya
  • Yoshinobu, Hiroe

Abstract

The adsorption filter according to the present invention is formed from a molded body including activated carbon and a binder, the pore volume of pores having a diameter of 10 μm or greater in terms of the volume of the adsorption filter as measured through mercury intrusion being 0.10 cm3/cc to 0.39 cm3/ee.

IPC Classes  ?

  • B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
  • B01J 20/20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
  • B01J 20/30 - Processes for preparing, regenerating or reactivating

80.

Multilayer Film Having Excellent Recoverability

      
Application Number 17919308
Status Pending
Filing Date 2021-04-14
First Publication Date 2023-05-18
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Balemans, Frank
  • Shimo, Hiroyuki
  • Kitamura, Masahiro
  • Shimizu, Yuji

Abstract

The present disclosure provides a multilayer film comprising a resin composition layer containing an ethylene-vinyl alcohol copolymer with an ethylene unit content of 20 mol% or more and 60 mol% or less and an ethylene-vinyl alcohol copolymer with an ethylene unit content being more than the ethylene-vinyl alcohol copolymer, and a thermoplastic resin layer.

IPC Classes  ?

  • B32B 7/02 - Physical, chemical or physicochemical properties
  • B32B 1/08 - Tubular products
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B65D 65/40 - Applications of laminates for particular packaging purposes
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C 48/10 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

81.

Multilayer Structure, and Packaging Material for Retort Using Same

      
Application Number 17920613
Status Pending
Filing Date 2021-04-22
First Publication Date 2023-05-18
Owner KURARAY CO., LTD. (Japan)
Inventor Yoshida, Kentaro

Abstract

There is provided a multilayer structure comprising at least a barrier resin layer (X) and an inorganic barrier layer (Y) with a thickness of 500 nm or less which is adjacent to the barrier resin layer (X), wherein the layer (X) is made of a resin composition (x) comprising an ethylene-vinyl alcohol copolymer (A) and a polyamide (B) in a mass ratio (A/B) of 55/45 to 98/2, and the ethylene-vinyl alcohol copolymer (A) has an ethylene content of 20 to 46 mol % and a saponification degree of 90 mol % or more. Thus, there can be provided a multilayer structure having excellent gas barrier properties and appearance even after being subjected to stretching process or retorting process followed by bending process, and a packaging material for retort therewith.

IPC Classes  ?

  • B32B 7/02 - Physical, chemical or physicochemical properties
  • B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 27/34 - Layered products essentially comprising synthetic resin comprising polyamides
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • C08L 31/04 - Homopolymers or copolymers of vinyl acetate
  • C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08J 7/06 - Coating with compositions not containing macromolecular substances
  • C08J 7/048 - Forming gas barrier coatings
  • B65D 65/40 - Applications of laminates for particular packaging purposes

82.

COLORED POLYAMIDE RESIN COMPOSITION AND MOLDED BODY THEREOF

      
Application Number 17917131
Status Pending
Filing Date 2021-04-08
First Publication Date 2023-05-18
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Sugai, Naoto
  • Shigematsu, Takaharu

Abstract

A polyamide resin composition containing, per 100 parts by mass of a particular polyamide (A), 45 to 120 parts by mass of an inorganic filler (B), 25 to 40 parts of at least one kind of a phosphinate salt (C) represented by the particular formula, 2 to 15 parts by mass of a phosphite salt (D), and a colorant (E), having a sulfur element content of less than 220 ppm by mass and ΔE represented by the following expression (1) of more than 1, and a molded body thereof: A polyamide resin composition containing, per 100 parts by mass of a particular polyamide (A), 45 to 120 parts by mass of an inorganic filler (B), 25 to 40 parts of at least one kind of a phosphinate salt (C) represented by the particular formula, 2 to 15 parts by mass of a phosphite salt (D), and a colorant (E), having a sulfur element content of less than 220 ppm by mass and ΔE represented by the following expression (1) of more than 1, and a molded body thereof: ΔE=[(L*col·L*nat)2+(a*col·a*nat)2+(b*col·b*nat)2]1/2  (1) A polyamide resin composition containing, per 100 parts by mass of a particular polyamide (A), 45 to 120 parts by mass of an inorganic filler (B), 25 to 40 parts of at least one kind of a phosphinate salt (C) represented by the particular formula, 2 to 15 parts by mass of a phosphite salt (D), and a colorant (E), having a sulfur element content of less than 220 ppm by mass and ΔE represented by the following expression (1) of more than 1, and a molded body thereof: ΔE=[(L*col·L*nat)2+(a*col·a*nat)2+(b*col·b*nat)2]1/2  (1) wherein the symbols in the expression are defined in the description.

IPC Classes  ?

  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
  • C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
  • C08K 7/14 - Glass
  • C08K 5/00 - Use of organic ingredients
  • B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

83.

SMALL DIAMETER FIBER BRAID WITH CENTRAL CORE MEMBER

      
Application Number 18092459
Status Pending
Filing Date 2023-01-03
First Publication Date 2023-05-18
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Coffey, Patrick
  • Sloan, Forrest

Abstract

A cord comprises a braided sheath of strands having an outer surface, an inner surface, and a central hollow portion defined by the inner surface and having a volume and a core within the central hollow portion of the tubular braided sheath, such that when the cord is in a relaxed state the tubular braided sheath has a cylindrical shape and a relaxed volume of the central hollow portion wherein the core does not fill the relaxed volume of the central hollow portion of the tubular braided sheath; when the cord is in a longitudinal tensioned state, the tubular braided sheath elongates under the longitudinal tension such that a tensioned volume of at least a part of the central hollow portion of the tubular braided sheath is less than the relaxed volume; and the inner surface of the tubular braided sheath of tensioned volume contacts and cinches a surface of the core.

IPC Classes  ?

  • A61B 17/06 - Needles; Holders or packages for needles or suture materials
  • D07B 1/04 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
  • D04C 1/12 - Cords, lines, or tows
  • D07B 1/02 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
  • A61L 17/04 - Non-resorbable materials
  • A61L 17/14 - Post-treatment to improve physical properties

84.

Coating Agent for Paper and Coated Paper Using Same

      
Application Number 17769529
Status Pending
Filing Date 2020-10-15
First Publication Date 2023-05-11
Owner KURARAY CO., LTD. (Japan)
Inventor Taoka, Yuta

Abstract

A coating agent for paper comprises: an ethylene-vinyl alcohol copolymer, wherein the ethylene-vinyl alcohol copolymer has a content of ethylene units of 1 mol % or more and less than 20 mol % and a block character of the ethylene units from 0.90 to 0.99. Coated paper is obtained by coating paper with such a coating agent. The coating agent of the present invention is excellent in viscosity stability and also causes the resulting coated paper to be excellent in barrier properties and water resistance.

IPC Classes  ?

  • D21H 19/12 - Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
  • C08F 297/02 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
  • C09D 153/00 - Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • D21H 21/16 - Sizing or water-repelling agents
  • D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes

85.

COLORED RESIN SHEET AND LEATHER-LIKE SHEET

      
Application Number 17907687
Status Pending
Filing Date 2021-04-01
First Publication Date 2023-05-11
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Matsuda, Daisuke
  • Warita, Masato
  • Sato, Takehiro
  • Akagi, Yuta

Abstract

A colored resin sheet includes a resin and a colorant dispersed in the resin, and has an average value of visible light transmittances for a red range of a wavelength of 680 to 780 nm, of 50% or more. The colored resin sheet has a combination of a lightness L* value and an average value of light transmittances for an entire visible light range of a wavelength of 380 to 780 nm, respectively, of: a) 15 or less, and 15% or more; b) greater than 15 and less than or equal to 35, and 25% or more; or c) greater than 35 and less than or equal to 60, and 40% or more. A leather-like sheet includes a colored resin layer and a surface having a lightness L* value of 40 or less, and has an average value of visible light transmittances for the red range, of 5% or more.

IPC Classes  ?

  • B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
  • B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
  • D06N 3/12 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N 3/14 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds with polyurethanes
  • D06N 3/04 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06N 3/18 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
  • C08J 5/18 - Manufacture of films or sheets

86.

POROUS MOLDED PLATE

      
Application Number JP2022040788
Publication Number 2023/080122
Status In Force
Filing Date 2022-10-31
Publication Date 2023-05-11
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Hitomi, Yoshinori
  • Imagawa, Akira
  • Ogawa, Atsuhisa
  • Katsuya, Satoshi
  • Hada, Saburo

Abstract

The present invention pertains to a porous molded plate that contains 35-70 mass% of a substance not involved in a pozzolanic reaction, 20-61.5 mass% of a cement, 1-3 mass% of a synthetic fiber and 2.5-7 mass% of a pulp, wherein the ratio (B)/(A) is 1.70-6.0 [wherein (A) stands for the pore volume within the range of 660-9100 nm in the pore size distribution of the molded plate determined by the mercury injection method, and (B) stands for the pore volume within the range of 6-560 nm therein].

IPC Classes  ?

  • C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
  • C04B 14/04 - Silica-rich materials; Silicates
  • C04B 14/06 - Quartz; Sand
  • C04B 14/20 - Mica; Vermiculite
  • C04B 14/28 - Carbonates of calcium
  • C04B 16/02 - Cellulosic materials
  • C04B 16/06 - Macromolecular compounds fibrous
  • C04B 18/08 - Flue dust
  • C04B 18/14 - Waste materials; Refuse from metallurgical processes
  • C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof

87.

POLYVINYL ALCOHOL FILM

      
Application Number JP2022039578
Publication Number 2023/074639
Status In Force
Filing Date 2022-10-24
Publication Date 2023-05-04
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kawasaki Emi
  • Tanabe Hirofumi
  • Okamoto Minoru
  • Kazeto Osamu

Abstract

Provided is a PVA film that can be used to manufacture a polarizing film exhibiting excellent polarization performance and heat and moisture resistance without increasing the number of steps required for manufacturing the polarizing film. The polyvinyl alcohol film is a water-insoluble polyvinyl alcohol film wherein when a cross-section, that emerged as a result of cutting the polyvinyl alcohol film perpendicular to a first surface and second surface of the polyvinyl alcohol film, is subjected to a nano-indentation test in air having a temperature of 23ºC and a RH of 40%, the composite elastic modulus is such that if the composite elastic modulus in the vicinity of the first surface is denoted by Er1 (GPa), the composite elastic modulus in the vicinity of the second surface is denoted by Er2 (GPa), and the composite elastic modulus of a center section in the thickness direction is denoted by Er3 (GPa), then Er1, Er2, and Er3 satisfy expression (1) and expression (2) below. (1): 0.40 ≦ Er1 - Er3 ≦ 1.20 (2): 0.40 ≦ Er2 - Er3 ≦ 1.20 [In expressions (1) and (2), Er1 is the composite elastic modulus of an area within 5 µm from the first surface toward the center section in the thickness direction, Er2 is the composite elastic modulus of an area within 5 µm from the second surface toward the center section in the thickness direction, and Er3 is the composite elastic modulus of the area of the center section in the thickness direction.]

IPC Classes  ?

  • G02B 5/30 - Polarising elements
  • C08J 5/18 - Manufacture of films or sheets
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

88.

POROUS MEMBRANE AND METHOD FOR MANUFACTURING POROUS MEMBRANE

      
Application Number JP2022039686
Publication Number 2023/074670
Status In Force
Filing Date 2022-10-25
Publication Date 2023-05-04
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Yabuno, Youhei
  • Matsumoto, Kazuki
  • Miyagawa, Naoki
  • Mizumoto, Yoshito

Abstract

One aspect of the present invention relates to a porous membrane having a porous structure, the porous membrane being characterized in that at least the porous structure of the membrane cross-section is observed in a cross-sectional surface cut at a discretionary cross-section in which at least the porous structure of the porous membrane can be observed, and, when fractal dimensions calculated using image data obtained by capturing an image of the porous structure at a discretionary image-capture position and a discretionary image-capture magnification are calculated under a plurality of conditions numbering at least two or more, all of the fractal dimensions calculated under each of the plurality of conditions are 1.5-1.9 (inclusive).

IPC Classes  ?

  • B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
  • B01D 69/08 - Hollow fibre membranes
  • C08J 9/26 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out

89.

FULL-GRAIN LEATHER-LIKE SHEET

      
Application Number JP2022040422
Publication Number 2023/074858
Status In Force
Filing Date 2022-10-28
Publication Date 2023-05-04
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Uesaka Mitsuharu
  • Takatori Yohei
  • Warita Masato

Abstract

This full-grain leather-like sheet is provided with a fiber substrate and a resin layer laminated on one surface of the fiber substrate, the resin layer includes at least one skin layer, and the skin layer contains polyurethane, a nonionic compound with an HLB value of 10-16, and a water-soluble polymer, and has a surface free energy with a 25-40 mJ/m2polar part and a 30-40 mJ/m2 dispersive part, analyzed with OWRK.

IPC Classes  ?

  • D06N 3/14 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds with polyurethanes
  • B32B 5/00 - Layered products characterised by the non-homogeneity or physical structure of a layer
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes

90.

THERMOPLASTIC ELASTOMER COMPOSITION, FORMED PRODUCT, LAYERED STRUCTURE, AND METHOD FOR PRODUCING THE LAYERED STRUCTURE

      
Application Number 17905395
Status Pending
Filing Date 2021-02-26
First Publication Date 2023-05-04
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kawahara, Moe
  • Hirakata, Shutaro
  • Ono, Tomohiro

Abstract

A thermoplastic elastomer composition including 100 parts by mass of a hydrogenated block copolymer (A), 20 to 180 parts by mass of an acrylic block copolymer (B), 5 to 45 parts by mass of an aromatic polymer (C), and 70 to 250 parts by mass of a softener (D). The hydrogenated block copolymer (A) is a hydrogenated product of a block copolymer (P) having at least two polymer blocks (a1) with a structural unit derived from an aromatic vinyl compound and at least one polymer block (a2) with a structural unit derived from a conjugated diene. The acrylic block copolymer (B) has at least one polymer block (b1) with a structural unit derived from an acrylate and at least one polymer block (b2) with a structural unit derived from a methacrylate.

IPC Classes  ?

  • C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
  • C08F 220/14 - Methyl esters
  • C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08L 25/16 - Homopolymers or copolymers of alkyl-substituted styrenes

91.

POLYAMIDE BLOCK COPOLYMER

      
Application Number JP2022039866
Publication Number 2023/074726
Status In Force
Filing Date 2022-10-26
Publication Date 2023-05-04
Owner KURARAY CO., LTD. (Japan)
Inventor Minamiguchi, Daiki

Abstract

Provided is a polyamide block copolymer containing: a polymer block (A) that contains at least 50 mol% of a structural unit derived from a polyamide; and a polymer block (B) that contains at least 50 mol% of a structural unit derived from at least one substance selected from the group consisting of polyethers and polyesters, wherein the polymer block (B) has a glass transition temperature of 20°C or lower and a melting point of 230°C or higher.

IPC Classes  ?

  • C08G 81/00 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers

92.

BINDER FOR POWER STORAGE DEVICES, BINDER SOLUTION FOR POWER STORAGE DEVICES, POWER STORAGE DEVICE ELECTRODE SLURRY, POWER STORAGE DEVICE ELECTRODE, AND POWER STORAGE DEVICE

      
Application Number JP2022040885
Publication Number 2023/074910
Status In Force
Filing Date 2022-11-01
Publication Date 2023-05-04
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Tachikawa Kengo
  • Kanno Momotaro
  • Nii Shinsuke
  • Kurashima Kenta

Abstract

Provided is a binder for power storage devices, that provides an excellent peel strength when used in an electrode and that is favorable for obtaining a low-resistance electrode. Also provided are a binder solution for power storage devices, a power storage device electrode slurry, a power storage device electrode, and a power storage device. The binder for power storage devices contains a modified vinyl alcohol polymer that has a 0.05-10 mol% content of structural units deriving from (A) ethylenically unsaturated dicarboxylic acid derivatives and that has a degree of saponification of 70.0-99.9 mol%. The amount of insoluble component in the modified vinyl alcohol polymer, considered for the aqueous solution prepared with a 5 mass% concentration thereof and residing at 90°C, is from 0.1 ppm to less than 2,000 ppm.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01G 11/06 - Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
  • H01G 11/38 - Carbon pastes or blends; Binders or additives therein
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
  • H01M 4/139 - Processes of manufacture

93.

Synthetic Food Casings Comprising Polyvinyl Alcohols

      
Application Number 17909525
Status Pending
Filing Date 2021-02-19
First Publication Date 2023-04-27
Owner KURARAY CO., LTD. (Japan)
Inventor Baier, Moritz

Abstract

The invention is directed to synthetic food casings made from specific polyvinyl alcohol grades containing carbonyl groups, preferably in admixture with other polymers, as well as processes for using such synthetic food casings.

IPC Classes  ?

94.

Β-METHYL-δ-VALEROLACTONE POLYMER

      
Application Number JP2022039196
Publication Number 2023/068345
Status In Force
Filing Date 2022-10-20
Publication Date 2023-04-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ishio, Muneki
  • Sano, Yuki
  • Hosaka, Yusaku

Abstract

A β-Methyl-δ-valerolactone polymer is represented by general formula (I) and has a number average molecular weight of 2,000 to 100,000.

IPC Classes  ?

  • C08G 63/08 - Lactones or lactides
  • C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable

95.

Β-METHYL-δ-VALEROLACTONE POLYMER

      
Application Number JP2022039197
Publication Number 2023/068346
Status In Force
Filing Date 2022-10-20
Publication Date 2023-04-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ishio, Muneki
  • Sano, Yuki
  • Hosaka, Yusaku

Abstract

A β-Methyl-δ-valerolactone polymer is represented by general formula (I).

IPC Classes  ?

  • C08G 63/08 - Lactones or lactides
  • C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable

96.

METHOD FOR PRODUCING β-METHYL-δ-VALEROLACTONE POLYMER

      
Application Number JP2022039198
Publication Number 2023/068347
Status In Force
Filing Date 2022-10-20
Publication Date 2023-04-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ishio, Muneki
  • Sano, Yuki
  • Hosaka, Yusaku

Abstract

A method for producing a β-methyl-δ-valerolactone polymer, including a step of: adding an end modifier in a reaction solution in which a β-methyl-δ-valerolactone, an alcohol compound or water, and a base catalyst have been reacted; and carrying out an end modifying reaction.

IPC Classes  ?

  • C08G 63/91 - Polymers modified by chemical after-treatment

97.

RESIN COMPOSITION

      
Application Number JP2022039199
Publication Number 2023/068348
Status In Force
Filing Date 2022-10-20
Publication Date 2023-04-27
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Ishio, Muneki
  • Sano, Yuki
  • Hosaka, Yusaku

Abstract

A resin composition containing a polylactic acid polymer and a β-methyl-δ-valerolactone polymer.

IPC Classes  ?

  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08G 63/08 - Lactones or lactides
  • C08G 63/83 - Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof

98.

CARBONACEOUS MATERIAL AND METHOD FOR PRODUCING SAME, WATER PURIFICATION FILTER, AND WATER PURIFIER

      
Application Number 17798175
Status Pending
Filing Date 2021-06-25
First Publication Date 2023-04-20
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Hanamoto, Tetsuya
  • Hitomi, Mitsunori
  • Yoshinobu, Hiroe

Abstract

One aspect of the present invention relates to a carbonaceous material having a BET specific surface area calculated from a nitrogen adsorption isotherm by a BET method, of 750 m2/g or more and 1000 m2/g or less, a ratio of a pore volume of pores of 0.3875 to 0.9125 nm calculated from the nitrogen adsorption isotherm by a HK method to a total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 80% or more, and an average pore diameter obtained by the following formula using the BET specific surface area and the total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 1.614 nm or less: D=4000×V/S (wherein D represents the average pore diameter (nm), V represents the total pore volume (mL/g), and S represents the specific surface area (m2/g)).

IPC Classes  ?

99.

LIGHT-EMITTING DISPLAY SHEET, LIGHT-EMITTING DISPLAY MEMBER, LIGHT-EMITTING DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING DISPLAY MEMBER

      
Application Number 17906343
Status Pending
Filing Date 2021-03-16
First Publication Date 2023-04-20
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Eguchi, Daisuke
  • Ito, Toshiyuki
  • Daimon, Tatsuya

Abstract

A light-emitting display sheet includes a first fiber base material layer and a surface material layer stacked on the first fiber base material layer. The first fiber base material layer includes a first surface facing the surface material layer, and a second surface opposite to the first surface. The light-emitting display sheet further includes a print portion having an outline and sandwiched between the first surface of the first fiber base material layer and the surface material layer.

IPC Classes  ?

  • G09F 13/08 - Signs, boards, or panels, illuminated from behind the insignia using both translucent and non-translucent layers
  • B32B 7/023 - Optical properties
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes

100.

AQUEOUS DISPERSION, AQUEOUS EMULSION, COATING AGENT, COATED PAPER, MULTILAYER STRUCTURE, PACKING MATERIAL, ADHESIVE AGENT, AND AQUEOUS EMULSION PRODUCTION METHOD

      
Application Number 17915740
Status Pending
Filing Date 2021-03-26
First Publication Date 2023-04-20
Owner KURARAY CO., LTD. (Japan)
Inventor
  • Kaharu, Taeko
  • Imaoka, Yoriko
  • Taoka, Yuta
  • Yamamoto, Ayumu

Abstract

The present invention provides an aqueous dispersion that enables production of a film having improved water resistance, tensile elastic modulus, and stress at break, and with which a decrease of strain at break can be reduced in the film. The present invention relates to an aqueous dispersion comprising an ethylene-vinyl alcohol copolymer (A) and a cellulose nanofiber, the ethylene unit content of the ethylene-vinyl alcohol copolymer (A) being 1 mol % or more and less than 20 mol %.

IPC Classes  ?

  • C08F 216/06 - Polyvinyl alcohol
  • C08L 23/08 - Copolymers of ethene
  • D21H 19/34 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising cellulose or derivatives thereof
  • D21H 19/22 - Polyalkenes, e.g. polystyrene
  • C08K 7/02 - Fibres or whiskers
  • C09J 11/06 - Non-macromolecular additives organic
  • C09J 123/08 - Copolymers of ethene
  1     2     3     ...     34        Next Page