Abstract

A cement composition containing a fluid loss control agent and a cement, wherein the fluid loss control agent contains a vinyl alcohol polymer and a crosslinking agent, and a swelling percentage of the fluid loss control agent is 200% or more and 3,600% or less.

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 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C09K 8/487 - Fluid loss control additives; Additives for reducing or preventing circulation loss
• C09K 8/512 - Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents

Abstract

One aspect of the present invention is a carbon dioxide adsorption battery including: a negative electrode; a positive electrode; a separator disposed between the negative electrode and the positive electrode; and electrolyte layers respectively disposed between the negative electrode and the separator and between the positive electrode and the separator, wherein the negative electrode is a gas-permeable electrode, each of the electrolyte layers includes an electrolytic solution capable of dissolving carbon dioxide, and a redox compound having an N-oxy radical group within a molecule, and the separator suppresses permeation of the redox compound but is permeable to the electrolytic solution.

IPC Classes  ?

• H01M 12/08 - Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
• C01B 32/50 - Carbon dioxide

Abstract

The present invention provides a double braid rope structure configured to include an inner layer and an outer layer. In said double braid rope structure (10), an inner layer (3) is formed of high-strength/high-modulus fibers having a yarn strength of 20 cN/dtex or greater and a yarn elastic modulus of 400 cN/dtex or greater, and the ratio of the average value of yarn lengths forming the inner layer of a cut section (V), which is obtained by cutting the rope structure (10) into a predetermined length, with respect to the rope length of the cut section (V) falls within the range from 1.005 to 1.200 in terms of yarn length/rope length.

IPC Classes  ?

• D07B 1/02 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
• D04C 1/12 - Cords, lines, or tows

Abstract

The present invention addresses the problem of providing a microcapsulated immunoisolation device which can be removed easily, does not undergo breakage, and is suitable for the improvement in a diffusion efficiency of a physiologically active substance necessary for transplantation while keeping the immunoisolation effect thereof. The present invention provides an immunoisolation device which is provided with a chamber in which a material to be transplanted is embedded, in which the chamber is covered with an immunoisolation membrane.

IPC Classes  ?

• A61L 27/14 - Macromolecular materials

Abstract

The present invention addresses the problem, in long-term transplantation of a macroencapsulated immunoisolation device in which a porous membrane, etc., is used, of simultaneously improving the efficiency of diffusion of a physiologically active substance released from a transplanted object, improving the efficiency of diffusion of nutrients to cells, etc., that are the transplanted object, and efficiently fixing the transplanted object in a dispersed manner so that, inter alia, the cells included in the macroencapsulated immunoisolation device are uniform, while maintaining an immunoisolation effect. The present invention provides a hydrogel for embedding a transplanted object, the hydrogel containing water and a polymer crosslinked by visible light.

IPC Classes  ?

• A61K 35/12 - Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
• A61L 27/16 - Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61L 27/38 - Animal cells
• A61L 27/40 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material
• A61L 27/50 - Materials characterised by their function or physical properties
• A61L 27/52 - Hydrogels or hydrocolloids
• C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus

Abstract

Provided is a PVA film that, even if the PVA film is subjected to a biodegradation process or incineration process and carbon dioxide is generated therefrom, does not increase carbon dioxide existing in the earth environment. Provided is a method for easily and reliably identifying the manufacturer of a PVA film. A polyvinyl alcohol resin film comprising a polyvinyl alcohol resin (A), wherein the content ratio 14C/C of carbon-14 (14C) in all carbon included in the polyvinyl alcohol resin (A) is at least 1.0×10-14. A method for identifying a polyvinyl alcohol resin film, the method comprising: measuring the content ratio 14C/C of carbon-14 (14C) in all carbon, to distinguish a polyvinyl alcohol resin film containing a polyvinyl alcohol resin (Ab) in which all or a portion of carbon is derived from biological ethylene (Bb), from a polyvinyl alcohol resin film containing only a polyvinyl alcohol resin (Ap) derived from ethylene (Bp) derived only from fossil fuel.

IPC Classes  ?

• C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
• C08J 5/18 - Manufacture of films or sheets

Abstract

Carbonaceous material that is activated to form precursor activated carbon is further enhanced by doping with iron and nitrogen and calcining. The resultant sorbent material has excellent catalytic properties which are useful in the field of fluid purification. The further enhancement can be performed in a single stage process or a dual stage process. The carbonaceous material includes those obtained from coal, wood, or coconut shells. The described treatment processes result in a sorbent material that has excellent performance in removing chloramine and similar compounds from fluids such as water that is intended for drinking.

IPC Classes  ?

• B01D 53/02 - 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 adsorption, e.g. preparative gas chromatography
• B01D 53/64 - Heavy metals or compounds thereof, e.g. mercury
• B01D 53/81 - Solid phase processes

Abstract

This application describes a braided cord (1) containing a braided sheath (2) and optionally a core (3) surrounded by the braided sheath (2). The braided cord (1) has changing cross-sectional area ranging from 0.0004 mm2 to 30 mm2 and contains one or more sections having a tapering angle (?) ranging from 1° to 60° when observed in one direction along the cord axis. The change in the cross-sectional area of the cord (1) can be achieved by changing the thickness of the braided sheath (2) and/or changing the cross-sectional area of the core (3) when the core is present. The thickness of the braided sheath (2) can be adjusted by changing the size and/or twist level of one or more sheath strands, changing the pick count of the braided sheath (2), and/or using one or more shaped sheath strands. This application also describes a process of producing the braided cord (1) with changing cross-sectional area.

IPC Classes  ?

• D04C 1/06 - Braid or lace serving particular purposes
• D04C 1/12 - Cords, lines, or tows

Abstract

Provided are: reinforcing fibers exhibiting excellent adhesiveness to rubber without the need to use resorcinol, formaldehyde or an epoxy compound; and a molded body that uses the same. The reinforcing fibers are characterized: by comprising fibers, a surface-modifying layer for coating at least a portion of the surface of the fibers, and an adhesive layer that contains a conjugated diene rubber and covers at least a portion of the surface-modifying layer; and in that the surface-modifying layer has a weight-average molecular weight (Mw) of 300 or greater and contains a polyamine compound that has one or more functional groups selected from imino groups and primary to tertiary amine groups.

IPC Classes  ?

• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• D06M 13/332 - Di- or polyamines
• D06M 15/61 - Polyamines
• 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

Abstract

Disclosed herein are ropes containing bundles of filaments, where each bundle includes at least 70% by volume of liquid crystal polymer filaments, and where at least one bundle includes liquid crystal polymer filaments of at least 10 denier per filament in size. Also disclosed herein are methods of pulling or lifting an object by applying tension to such a rope connected to the object, where the rope is arranged over a sheave or a non-rotating guide surface, and a ratio of a diameter of the sheave or an effective diameter of the non-rotating guide surface, D, to a diameter of the rope, d, is at least 20:1.

IPC Classes  ?

• D07B 1/02 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics

Abstract

Method for producing core-sheath structures by shaping at least one filament bundle containing a plurality of filaments to form at least one shaped strand of filaments, and braiding a plurality of strands, including the at least one shaped strand of filaments, over a core to form the core-sheath structure containing a braided sheath of the strands surrounding the core, wherein the shaped strand of filaments is an untwisted strand having a twist level of less than 1 turn per meter, a cross-sectional aspect ratio of the shaped strand of filaments is at least 3:1, as measured in the braided sheath, a thickness of at least a portion of the braided sheath ranges from about 10 to about 200 pm, and the braided sheath comprises a synthetic fiber having a tensile strength of greater than 12 cN/dtex. Also disclosed herein is core-sheath structure formed by such method.

IPC Classes  ?

• D04C 1/12 - Cords, lines, or tows
• D04C 1/02 - Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials

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 8/16 - Lactonisation
• C08F 216/06 - Polyvinyl alcohol
• C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only

Abstract

A thermoplastic elastomer composition is provided that can be adjusted to a wide range of hardness, has excellent tensile characteristics and shaping processability, and exhibits excellent bond strength even with respect to highly polar materials. A related laminate structure and a method for producing the laminate structure are also provided. The thermoplastic elastomer composition includes an acrylic block copolymer (I) and a hydrogenated block copolymer (II). In the thermoplastic elastomer composition, 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%. The laminate structure includes a layer formed of the thermoplastic elastomer composition. The method produces such a laminate structure.

IPC Classes  ?

• B32B 25/04 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• 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
• 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
• 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

Abstract

There is provided a thermoplastic elastomer composition with high flexibility, tensile properties, and transparency, and with high adhesive strength even to polar materials, a formed product, a layered structure, and a method for producing the layered structure. A thermoplastic elastomer composition comprising: 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), wherein 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, a polymer block (a1) content ranging from 3% to 45% by mass, 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, and the acrylic block copolymer (B) has a peak top molecular weight in the range of 50,000 to 180,000.

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 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• C08L 25/16 - Homopolymers or copolymers of alkyl-substituted styrenes
• C08L 91/08 - Mineral waxes

Abstract

Provided are 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 includes a polymer block (A) including methacrylic acid ester units, and a polymer block (B) including 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], the copolymer having a triblock structure represented by (A)-(B)-(A), the copolymer having a weight average molecular weight (Mw) of 110,000 to 250,000, the total content of the blocks (A) at both ends being 18 mass% or less.

IPC Classes  ?

• 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 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers

Abstract

A vinyl chloride resin composition is provided that benefits from excellent kneadability between a vinyl chloride resin and an acrylic block copolymer during a process such as melt-kneading for the preparation of the composition, and consequently attains improvements in thermal aging resistance, migration resistance, fogging resistance, electrical characteristics and printability without deterioration in the conventional high performance in flexibility, resistance to whitening on bending, and low-temperature characteristics of vinyl chloride resin compositions, particularly soft vinyl chloride resin compositions. A shaped article formed of the vinyl chloride resin composition is also provided. A vinyl chloride resin composition includes a vinyl chloride resin (A), an acrylic block copolymer (B) including a polymer block (b1) containing acrylic acid ester units and a polymer block (b2) containing methacrylic acid ester units, and a gelation accelerator (C), wherein the weight average molecular weight of the acrylic block copolymer (B) is in the range of 100,000 to 250,000, the content of the polymer block (b2) in the acrylic block copolymer (B) is in the range of 10 to 25 mass%, and the vinyl chloride resin composition contains 20 to 150 parts by mass of the acrylic block copolymer (B) and 4 to 18 parts by mass of the gelation accelerator (C) with respect to 100 parts by mass of the vinyl chloride resin (A).

IPC Classes  ?

• C08L 27/06 - Homopolymers or copolymers of vinyl chloride
• 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 33/02 - Homopolymers or copolymers of acids; Metal or ammonium salts thereof

Abstract

Provided is a sea-island composite fiber having excellent spinnability and excellent thermoplastic-deformability. The sea-island composite fiber includes island components and a sea component, the sea component having a lower melting point than the island components, has an aspect ratio of a cross section of 2.0-5.0, and has a thickness of the sea component of 0.2-2.0 µm, the thickness being a distance from an outer circumference on the minor axis of the cross section to an island component closest to the outer circumference.

IPC Classes  ?

• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
• B29C 70/18 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material

Abstract

Provided are: surface-modified fibers that are capable of having improved adhesion to rubber without using resorcinol and formaldehyde; reinforcing fibers; and a molded article using same. The surface-modified fibers each include a fiber and a surface-modifying layer at least partially covering the surface of the fiber. The surface of the surface-modified layer has a solid surface zeta potential of -20.0 to 30.0 mV.

IPC Classes  ?

• D06M 15/356 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C08J 7/04 - Coating
• D06M 13/322 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
• D06M 13/395 - Isocyanates
• D06M 15/55 - Epoxy resins

Abstract

The present invention provides: a diene rubber which enables the achievement of a rubber composition or a crosslinked product, which has a good balance between ice grip performance and wet grip performance at high levels; a rubber composition which contains this diene rubber; a tire member which is formed of this rubber composition or a crosslinked product of this rubber composition; and a tire which at least partially uses this rubber composition or a crosslinked product of this rubber composition. The present invention also provides a resin modifying agent which is composed of a diene rubber and enables the achievement of a resin composition that has the above-described characteristics. A diene rubber (A) which contains a butadiene unit having a weight average molecular weight of 5,000-50,000, wherein if ß12 mol% is the percentage by mole of a 1, 2-linked butadiene unit and ßcp mol% is the percentage by mole of a specific structural unit, respectively relative to all butadiene units contained in the diene rubber (A), the following (i)-(iii) are satisfied: (i) ßcp > 0; (ii) ß12 > 40; and (iii) ßcp/(ß12 40) = 2.

IPC Classes  ?

• C08F 36/06 - Butadiene
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 21/00 - Compositions of unspecified rubbers

Abstract

The present invention relates to active carbon that has a 1250-1800 m2/g BET specific area ratio (A) calculated from the adsorption isotherm of carbon dioxide, and that has a 0.640 or lower ratio (B)/(C) of the pore volume (B) mL/g of pores with a 0.4-0.7 nm diameter to the pore volume (C) mL/g of pores with a 0.7-1.1 nm diameter, calculated by subjecting the adsorption/desorption isotherm of carbon dioxide to a grand canonical Monte Carlo simulation.

IPC Classes  ?

• C01B 32/318 - Preparation characterised by the starting materials
• 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 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating

Abstract

Provided are: a reinforcing fiber which is manufactured using an adhesive component containing neither resorcin nor formaldehyde, has excellent adhesion to rubber, and can be efficiently manufactured while avoiding contamination of manufacturing equipment; a method for manufacturing same; and a molded body using same. The reinforcing fiber is characterized by having an adhesive component on at least a portion of the surface thereof, the adhesive component containing a conjugated diene rubber and an oil, wherein the vapor pressure of the oil at 20°C is 10 Pa or less.

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
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• D06M 13/02 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
• D06M 13/224 - Esters of carboxylic acids; Esters of carbonic acid

Abstract

Provided is a composition for forming a hydrogel that makes it possible to form a sterilized hydrogel having high mechanical strength. Also provided are a hydrogel in which the composition for forming a hydrogel is used and a method for producing the composition for forming a hydrogel. The composition for forming a hydrogel is characterized in that said composition for forming a hydrogel contains a vinyl alcohol polymer having an ethylenically unsaturated group and a polymerization degree of 450 or more, the introduction rate of the ethylenically unsaturated group is 0.01-10 mol% in all structural units constituting the vinyl alcohol polymer, and no microorganisms detectable by the sterility test method specified in the general test methods of the Japanese Pharmacopoeia are present.

IPC Classes  ?

• C08F 8/00 - Chemical modification by after-treatment
• C08F 16/06 - Polyvinyl alcohol
• C08F 299/00 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
• C08G 75/04 - Polythioethers from mercapto compounds or metallic derivatives thereof

Abstract

Provided is a laminate which can achieve both of easiness of handling and adhesiveness in temporary fixing or the like, can be prevented from the transfer of adhesive residue, has excellent adhesiveness to various objects, particularly metals, and has a structure including a base part and a through-hole. A laminate comprising a base material and a structure that is provided on at least one surface of the base material and includes a base part and a through-hole, wherein the base part in the structure comprises an acrylic triblock copolymer (I), and the acrylic triblock copolymer (I) comprises two polymer blocks (A1) and (A2) each composed of a methacrylic acid ester unit and one polymer block (B) containing an acrylic acid ester unit represented by general formula: CH2=CH-COOR1 (1) (wherein R1 represents an organic group having 1 to 3 carbon atoms), has a (A1)-(B)-(A2) block structure, and has a weight average molecular weight of 50,000 to 250,000, and the total content of the polymer blocks (A1) and (A2) in the acrylic triblock copolymer (I) is 35% by mass or less.

IPC Classes  ?

• C09J 7/38 - Pressure-sensitive adhesives [PSA]
• C09J 7/35 - Heat-activated
• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• C09J 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers

Abstract

Provided is a laminate which can achieve both of adhesiveness/cohesiveness and removability, can be prevented from the transfer of adhesive residue, and comprises a structure including a base part and a through-hole and a base material. A laminate comprising a base material and a structure that is provided on at least one surface of the base material and includes a base part and a through-hole, wherein the base part in the structure comprises an acrylic triblock copolymer (I) and contains no adhesiveness-imparting resin or contains the component (I) and an adhesiveness-imparting resin at an [(adhesiveness-imparting resin)/(I)] ratio of 20/100 by mass or less, the acrylic triblock copolymer (I) comprises two polymer blocks (A1) and (A2) each composed of a methacrylic acid ester unit and one polymer block (B) containing an acrylic acid ester unit represented by general formula: CH2=CH-COOR1 (1) (wherein R1 represents an organic group having 4 to 12 carbon atoms), has an (A1)-(B)-(A2) block structure and has a weight average molecular weight of 50,000 to 250,000, and the total content of the polymer blocks (A1) and (A2) in acrylic triblock copolymer (I) is 35% by mass or less.

IPC Classes  ?

• C09J 7/38 - Pressure-sensitive adhesives [PSA]
• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• C09J 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers

Abstract

The present invention relates to a bundled yarn which is obtained by integrating a plurality of fibers by means of a sizing agent, and which is configured such that the sizing agent is composed of a modified polyvinyl alcohol that has a saponification degree of 85% by mole or more and contains 0.1-10% by mole of a structural unit (X) that is derived from an unsaturated carboxylic acid or a derivative thereof if the total amount of all monomer units is taken as 100% by mole.

IPC Classes  ?

• D06M 15/333 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
• C04B 16/06 - Macromolecular compounds fibrous
• C04B 28/04 - Portland cements
• C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

Abstract

Monodisperse hydrogel particles including a crosslinked form of a vinyl alcohol polymer that has an ethylenic unsaturated group and has an average degree of polymerization of 450 or higher, the monodisperse hydrogel particles having an average particle size of 10-5,000 µm and being such that the coefficient of variation of the particle size distribution is 10% or lower.

IPC Classes  ?

• C08F 299/00 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
• C08J 3/075 - Macromolecular gels
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules

Abstract

Provided are: pellets that contain an acrylic block copolymer having a polymer block containing a methyl acrylate unit, and that are sufficiently prevented from adhering to each other; and a molded article which is produced from the pellets with high efficiency, and in which excellent characteristics possessed by the acrylic block copolymer are not impaired. The pellets each comprise: an acrylic block copolymer (I) having at least one polymer block (A1) containing a methacrylic acid ester unit and at least one polymer block (B1) containing an acrylic acid ester unit; and an acrylic polymer (II) containing 35 mass% or more of a methyl methacrylate unit and having a melt flow rate (MFR) of 10 g/10 min or more at 230°C with a load of 3.8 kg, wherein the acrylic acid ester unit contained in the polymer block (B1) of the acrylic block copolymer (I) consists only of a methyl acrylate unit and an acrylic acid ester (1) unit represented by general formula CH2=CH-COOR1 (1) (in the formula, R1 represents an organic group having 4-12 carbon atoms), and the mass ratio (I)/(II) of the acrylic block copolymer (I) and the acrylic polymer (II) is 90/10 to 40/60.

IPC Classes  ?

• 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
• 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 33/04 - Homopolymers or copolymers of esters

Abstract

The objective of the invention is to provide a production method for a laminate in which the processability during extrusion molding is excellent and agglutination can be prevented sufficiently and without the loss of the excellent properties possessed by an acrylic block copolymer, such as adhesiveness. This laminate production method includes: a step (1) of causing a raw material pellet of an acrylic block copolymer (A), which has at least one polymer block (a1) comprising an acrylic acid alkyl ester unit and at least one polymer block (a2) comprising a methacrylic acid alkyl ester unit, to come into contact with an aqueous dispersion (C) containing acrylic resin particles (B) and containing no detergent; a step (2) of eliminating the moisture adhered to the pellet to obtain a pellet (D); and a step (3) of preparing an adhesive composition from the adhesive raw material containing the pellet (D) obtained in step (2), extrusion molding an adhesive layer comprising the adhesive composition, and laminating the adhesive layer and a base material layer.

IPC Classes  ?

• B32B 27/00 - Layered products essentially comprising synthetic resin
• C09J 7/38 - Pressure-sensitive adhesives [PSA]
• 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
• B29B 9/12 - Making granules characterised by structure or composition
• B29B 9/16 - Auxiliary treatment of granules
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• C09J 11/08 - Macromolecular additives
• C09J 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers

Abstract

The present invention provides: a method for more reliable anionic polymerization of a (meth)acrylic acid ester, the method enabling high living properties without sacrificing properties inherent in a (meth)acrylic polymer, such as transparency; and a method for more reliably producing a (meth)acrylic acid ester block polymer having high uniformity of molecular weight. In this method for anionic polymerization of a (meth)acrylic acid ester, a tertiary organic aluminum compound (A), an organic lithium compound (B) and at least one type of Lewis base (C) are present in a polymerization system. The tertiary organic aluminum compound (A) contains a tertiary organic aluminum compound (A1) that has a chemical structure in which two or more of the three bonds in an aluminum atom are bonded to an aromatic ring via an oxygen atom. The molar ratio (A2)/(A1) of a tertiary organic aluminum compound (A2) to the tertiary organic aluminum compound (A1) falls within the range 0-0.8%, the tertiary organic aluminum compound (A2) having a chemical structure in which one or fewer of the three bonds of an aluminum atom in the tertiary organic aluminum compound (A) is bonded to an aromatic ring via an oxygen atom.

IPC Classes  ?

• C08F 20/10 - Esters
• C08F 2/06 - Organic solvent
• C08F 4/12 - Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen of boron, aluminium, gallium, indium, thallium, or rare earths
• C08F 4/48 - Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides selected from alkali metals selected from lithium, rubidium, caesium, or francium
• C08F 4/54 - Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with other compounds thereof
• 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

Abstract

Provided are: a rubber composition whereby a cured product having excellent durability and vibration resistance can be obtained; said cured product; and a vibration-resistant rubber using said cured product. The rubber composition includes: a solid rubber (A); a liquid diene rubber (B); a silane coupling agent (C); and a silica (D) having a BET specific surface area of 15250 m2/g.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• C08K 3/36 - Silica
• C08K 5/54 - Silicon-containing compounds
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

Provided are: a rubber composition containing a peroxide-crosslinked hydrogenated nitrile rubber, the rubber composition having improved scorch stability without compromising the excellent properties of a crosslinked product of the composition; and a crosslinked product of the composition. The rubber composition contains 100 parts by mass of a hydrogenated nitrile rubber (A), 5-100 parts by mass of a filler (B), 1-10 parts by mass of an organic peroxide (C), and 1-20 parts by mass of a liquid diene-based rubber (D) having a polystyrene equivalent weight average molecular weight of 3,000-120,000 as measured by gel permeation chromatograph (GPC).

IPC Classes  ?

• C08L 15/00 - Compositions of rubber derivatives
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 5/14 - Peroxides
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 9/02 - Copolymers with acrylonitrile

Abstract

A hydrogenated block copolymer containing polymer blocks (Al) and (A2) each mainly containing an aromatic vinyl compound-derived structural unit and polymer blocks (B) and (C) each mainly containing a conjugated diene compound-derived structural unit, at least one of the polymer blocks (B) and (C) being present between the polymer blocks (Al) and (A2), the hydrogenated block copolymer having a total content of the polymer blocks (Al) and (A2) of 5 to 30% by mass, a 3,4-bond and 1,2-bond content in the polymer block (B) of 1 to 40% by mole, a 3,4-bond and 1,2-bond content in the polymer block (C) of 50 to 100% by mole, and a mass ratio [(C)/{(B)+(C)}] of the polymer block (C) to the sum of the polymer blocks (B) and (C) of 26/100 to 63/100.

IPC Classes  ?

• 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
• A61J 1/10 - Bag-type containers
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• B65D 65/40 - Applications of laminates for particular packaging purposes
• C08L 23/10 - Homopolymers or copolymers of propene
• 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

Abstract

Provided are pellets of an acrylic block copolymer which are sufficiently prevented from adhering to each other, without impairing the excellent performances of the acrylic block copolymer, such as transparency. The method is for producing pellets (D) comprising an acrylic block copolymer (A) including at least one polymer block (a1) comprising alkyl acrylate units and at least one polymer block (a2) comprising alkyl methacrylate units, the method comprising a step in which raw-material pellets of the acrylic block copolymer (A) are brought into contact with an aqueous dispersion (C) containing acrylic-resin particles (B) but containing no surfactant and a step in which the water adherent to the pellets is removed.

IPC Classes  ?

• C08J 3/12 - Powdering or granulating

Abstract

A block copolymer comprising: a polymer block (A) containing more than 70 mol% of a structural unit derived from an aromatic vinyl compound; and a polymer block (B) containing 30 mol% or more of a structural unit derived from a conjugated diene compound, said block copolymer further satisfying the following conditions. Condition (1): the contained amount of the polymer block (A) in the block copolymer is 1-70 mass%. Condition (2): the maximum width of a sequential temperature range in which tand is 1.0 or more is less than 16°C, as measured under the conditions of a distortion amount of 0.1%, a frequency of 1 Hz, a measurement temperature of -70 to 100°C and a temperature rise rate of 3°C/min, in accordance with JIS K 7244-10 (2005). Condition (3): the temperature at a peak position of tand under condition (2) is 0°C to +50°C. Condition (4): a mobility parameter M indicating the mobility of the polymer block (B) is 0.01 to 0.25 seconds.

IPC Classes  ?

• 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
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• 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
• C09J 153/02 - Vinyl aromatic monomers and conjugated dienes
• F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs

Abstract

Provided are: a modified hydrogenated product of a block copolymer having 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, wherein the modified hydrogenated product has one or more functional groups selected from among alkoxysilyl groups, carboxyl groups, amino groups, hydroxy groups, epoxy groups, and acid anhydride-derived groups, and satisfies the requirements below; a method for producing the modified hydrogenated product; and a resin composition containing the modified hydrogenated product. Requirement (1): The rate of weight change after being left alone for 30 minutes at 330°C in a nitrogen atmosphere is at least -5.5%. Requirement (2): The peak top intensity of tan d is at least 1.0 as measured at a temperature of -70 to 120°C under the conditions of a strain of 0.1%, a frequency of 1 Hz, and a heating rate of 3°C/min in accordance with JIS K7244-10 (2015).

IPC Classes  ?

• C08F 8/46 - Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation
• C08F 8/04 - Reduction, e.g. hydrogenation
• C08F 8/42 - Introducing metal atoms or metal-containing groups
• 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
• 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 77/06 - Polyamides derived from polyamines and polycarboxylic acids

Abstract

Reinforcing fibers according to the present invention each comprise a hydrophilic fiber and an adhesive component, wherein at least a portion of the surface of the hydrophilic fiber has the adhesive component, the adhesive component contains a modified conjugated diene rubber that is a conjugated diene rubber a portion of which has a hydrogen-bonding functional group, and the average number of hydrogen-bonding functional groups per molecule of the modified conjugated diene rubber is 2-150. This method is for producing the reinforcing fibers. This molded article uses the reinforcing fibers.

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
• B29B 15/10 - Coating or impregnating
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C09J 109/00 - Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
• D06M 15/21 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

The present invention provides: a resin material having excellent hue, water solubility, and viscosity stability in an aqueous solution, the resin material having an ethylene-modified-vinyl-alcohol-based polymer as a main component thereof; and an aqueous solution and an adhesive containing the resin material. The present invention relates to a resin material containing: sodium acetate; and an ethylene-modified-vinyl-alcohol-based polymer having a content ratio of ethylene units of 1 mol% to less than 15 mol%, a viscosity-average polymerization degree of 200 to less than 3000, and a degree of saponification of 80 mol% to less than 99.9 mol% and containing 0.0005 mol% to 0.10 mol% of propyl groups at one terminal end thereof; the content of the sodium acetate being 0.05% by mass to less than 2% by mass.

IPC Classes  ?

• C08F 216/06 - Polyvinyl alcohol
• C08F 8/12 - Hydrolysis
• C08F 210/02 - Ethene
• C08F 218/08 - Vinyl acetate
• C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09J 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

Abstract

An ethylene-vinyl alcohol copolymer having a content of ethylene units of 1 to less than 20 mol%, a viscosity average degree of polymerization of 200-5000, and a degree of saponification of 80-99.7 mol%, wherein the ethylene-vinyl alcohol copolymer has an ethylene unit block character of 0.90-0.99 in the ethylene-vinyl alcohol copolymer. Such an ethylene-vinyl alcohol copolymer has excellent high-speed coating property and water-resistant adhesiveness when used as an adhesive in particular.

IPC Classes  ?

• C08F 216/06 - Polyvinyl alcohol
• C08F 8/12 - Hydrolysis
• C09J 11/04 - Non-macromolecular additives inorganic
• C09J 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

Abstract

A block copolymer which contains: a polymer block A that contains a monomer unit (a1) derived from a farnesene; and a random copolymer block B that contains a monomer unit (b1) derived from a conjugated diene having 12 or less carbon atoms and a monomer unit (b2) derived from an aromatic vinyl compound. This block copolymer is configured such that: the mass ratio (A/B) of the polymer block A to the random copolymer block B in this block copolymer is from 30/70 to 0.5/99.5; the content of the monomer unit (b2) derived from an aromatic vinyl compound in the random copolymer block B is 1-50% by mass; and the weight average molecular weight (Mw) of this block copolymer is from 100,000 to 5,000,000.

IPC Classes  ?

• 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
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• 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

Abstract

Provided are: a modified liquid diene polymer which enables the achievement of a crosslinked product of a rubber composition, said crosslinked product having excellent wet grip performance, wear resistance and the like, and in said crosslinked product a filler being dispersed in an ideal state for the improvement of the physical properties; a rubber composition which contains this modified liquid diene polymer; the above-described crosslinked product; and a tire which partially uses this composition or this crosslinked product. A modified liquid diene polymer which is obtained by modifying a liquid diene block copolymer by a specific silane compound, said liquid diene block copolymer containing a polymer block (b'1) or (b"2) that contains a butadiene unit, and a polymer block (b'2) or (b"2). This modified liquid diene polymer has a functional group that is derived from the silane compound; and this modified liquid diene polymer satisfies specific conditions.

IPC Classes  ?

• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08K 3/013 - Fillers, pigments or reinforcing additives
• 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
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08K 5/5419 - Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
• C08L 9/06 - Copolymers with styrene
• C08L 15/00 - Compositions of rubber derivatives
• C08L 21/00 - Compositions of unspecified rubbers

Abstract

A composition for removing a sulfur-containing compound that is contained in at least one of a liquid and a gas. The sulfur-containing compound is composed of at least one compound that is selected from the group consisting of hydrogen sulfide and compounds containing an -SH group; and the composition contains an aldehyde and an amine, a conjugate acid of which has a pKa value of 11.3 or more in water at 25°C.

IPC Classes  ?

• B01J 20/22 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
• B01D 15/08 - Selective adsorption, e.g. chromatography
• B01D 53/14 - 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 absorption
• C10G 29/24 - Aldehydes or ketones
• C10L 3/10 - Working-up natural gas or synthetic natural gas

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  ?

• D07B 1/02 - Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
• A61B 17/06 - Needles; Holders or packages for needles or suture materials
• D04C 1/12 - Cords, lines, or tows

Abstract

The purpose of the present invention is to provide an activated carbon molded article which can satisfactorily adsorb an evaporated fuel generated from an automobile and can achieve low evaporated fuel emission performance when an automobile is parked for a long time of period. An activated carbon molded article having a specific surface area per volume of 290 to 520 m2/mL and an outer surface area per volume of 1.4 m2/L or more, wherein the specific surface area per volume is calculated from a specific surface area determined by a BET multipoint method and a packing density determined in accordance with JIS K 1474.

IPC Classes  ?

• C01B 32/168 - After-treatment
• 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 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating

Abstract

An aqueous solution including an ethylene-vinylalcohol copolymer (A), a C1-4 alcohol (B), and water (C), wherein the content ratio of ethylene units in the ethylene-vinylalcohol copolymer (A) is 1 mol% to less than 20 mol%, the in-water crystallinity Cw (30°C) at 30°C and the in-water crystallinity Cw (70°C) at 70°C determined by pulse NMR of the ethylene-vinylalcohol copolymer (A) satisfy formula (I), and the aqueous solution includes 0.1-100 parts by mass of the ethylene-vinylalcohol copolymer (A) with respect to 100 parts by mass of water (C), and 0.01-30 parts by mass of the alcohol (B) with respect to 100 parts by mass of water (C). An aqueous solution including an ethylene-vinylalcohol copolymer is thereby provided, in which there is little occurrence of unmixed lumps and the occurrence of fibrillar deposits is reduced even when shearing stress is applied.

IPC Classes  ?

• C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09D 7/20 - Diluents or solvents
• C08F 216/06 - Polyvinyl alcohol
• C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C08J 3/12 - Powdering or granulating

Abstract

Provided are: a modified diene polymer capable of achieving an ideal dispersion state, from the viewpoint of improving physical properties, of fillers in a crosslinked product obtained from a filler-containing rubber composition; and a method for producing the modified diene polymer. A linear modified diene polymer that carries a specific functional group exclusively at one end thereof and has an average functional group number of 0.8-1 per molecule.

IPC Classes  ?

• C08F 8/42 - Introducing metal atoms or metal-containing groups

Abstract

A block copolymer hydrogenate, which is a hydrogenate of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound in an amount of more than 70 mol%, and a polymer block (B) containing a structural unit derived from a conjugated diene compound in an amount of 30 mol% or more, and further satisfies the following requirements: Requirement (1): The content of the polymer block (A) in the block copolymer hydrogenate is 1 to 30% by mass. Requirement (2): The conjugated diene compound contains isoprene. Requirement (3): A total content of the 1,2-bond unit and the 3,4-bond unit in the structural units derived from the conjugated diene compound is 60 mol% or more. Requirement (4): The hydrogenation rate of the polymer block (B) is 60 mol% or more. Requirement (5): The block copolymer hydrogenate has a serial temperature range where tan.delta., as measured according to JIS K7244-10(2005) and under the conditions of a strain of 0.1%, a frequency of 1 Hz, a measurement temperature of -70 to 100°C and a rate of temperature increase of 3°C/min, is 1.0 or more, and the maximum width of the temperature range is 16°C or more.

IPC Classes  ?

• C08F 8/04 - Reduction, e.g. hydrogenation
• 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

Abstract

This block copolymer or a hydrogenated product of same has a polymer block (A) and a polymer block (B). The polymer block (B) has a structural unit that is derived from a conjugated diene compound and that contains one or more alicyclic skeletons (X) represented by formula (X) in the main chain.

IPC Classes  ?

• 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
• B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
• 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
• C09J 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
• F16F 7/00 - Vibration-dampers; Shock-absorbers
• F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs

Abstract

A (meth)acrylic block copolymer having excellent active energy ray curability, especially excellent curability of blends with acrylate monomers, said (meth)acrylic block copolymer being provided. A (meth)acrylic block copolymer containing a methacrylic polymer block (A) having an active-energy-ray-curable group that includes a partial structure shown by general formula (1), and an acrylic polymer block (B) not having an active-energy-ray-curable group. [In the formula, R1 represents a C1-10 hydrocarbon group, and W represents a C1-10 saturated hydrocarbon group.]

IPC Classes  ?

• 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
• C08F 265/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group on to polymers of esters
• C08F 299/00 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers

Abstract

Ethylene-vinyl alcohol copolymer particles which are characterized by containing an ethylene-vinyl alcohol copolymer that has an ethylene unit fraction of 1% by mole or more but less than 20% by mole, a viscosity-average degree of polymerization of 200 to 5,000 and a saponification degree of 80% by mole to 99.99% by mole, and which are also characterized in that the crystallinity in water at 30°C (Cw(30°C)) and the crystallinity in water at 70°C (Cw(70°C)) as determined by pulsed NMR satisfy formula (I). Consequently, the present invention provides ethylene-vinyl alcohol copolymer particles which have excellent solubility in water and excellent gas barrier properties.

IPC Classes  ?

• C08F 216/06 - Polyvinyl alcohol
• C08F 8/12 - Hydrolysis
• C08J 7/04 - Coating
• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
• C09D 123/04 - Homopolymers or copolymers of ethene
• C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

Abstract

Provided are: a modified liquid diene-based rubber that exhibits superior pumpability, anti-dripping properties, and reactivity, that also exhibits a superior rubber elasticity in an obtained cured product, and that is suitably employed in a sealing material, a tire bead filler, and so forth; and a composition containing said modified liquid diene-based rubber. The present invention provides a modified liquid diene-based rubber (A) that has a functional group (a) originating from an acid anhydride and that satisfies all of the following requirements (I) to (III). (I) The functional-group equivalent quantity of the functional group (a) falls within a range of 400 to 3500 g/eq. (II) The polystyrene-converted number average molecular weight (Mn) falls within a range of 5000 to 20000 when measured by means of gel permeation chromatography (GPC). (III) The melt viscosity at 38ºC is equal to or greater than 3 Pas, and X, described below, is equal to or greater than 6100 K. X(K): regarding two values of melt viscosity ? (Pas) measured at 38ºC and 60ºC by using a Brookfield viscometer, X(K) is the slope of a straight line that passes through these values when the two values are plotted on a graph in which 1/T (K-1) is taken on the horizontal axis and Ln[?/(Pas)] is taken on the vertical axis (where T is temperature (K)).

IPC Classes  ?

• C08C 19/34 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with oxygen or oxygen-containing groups
• C08L 15/00 - Compositions of rubber derivatives
• C08L 21/00 - Compositions of unspecified rubbers
• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers

Abstract

The invention provides a high-grip tire rubber composition satisfying wet grip performance, dry grip performance and steering stability in a high and well-balanced manner, and a tire tread, a bead filler, a tire belt and a pneumatic tire which each partially include the composition. The high-grip tire rubber composition includes 100 parts by mass of a solid rubber (A) , the solid rubber (A) including not less than 60 mass% of a styrene butadiene rubber with 20 mass% or more styrene content, 0.1 to 90 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 150 parts by mass of a filler (C) , the modified liquid diene rubber (B) satisfying the following (i) to (iii) : (i) the weight average molecular weight (Mw) is not less than 1,000 and less than 15,000, (ii) the vinyl content is not more than 70 mol%, and (iii) the average number of the functional groups per molecule of the modified liquid diene rubber (B) is 1 to 20.

IPC Classes  ?

• C08L 9/06 - Copolymers with styrene
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

The invention provides a heavy-duty tire rubber composition capable of giving heavy-duty tires which exhibit low heat generation properties and have good abrasion resistance, and also provides a tire tread, a bead filler, a tire belt and a heavy-duty tire which each partially include the composition. The heavy-duty tire rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a si lane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is not less than 1,000 and not more than 120,000, and (ii) the vinyl content is less than 30 mol%.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08K 5/54 - Silicon-containing compounds
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 15/00 - Compositions of rubber derivatives

Abstract

The invention provides a tire rubber composition capable of giving crosslinked products having excellent properties including mechanical strength such as abrasion resistance, a crosslinked product of the composition, and a tire tread, a bead filler, a tire belt and a pneumatic tire which each partially include the composition or the crosslinked product and which each exhibit enhanced rolling resistance performance (low fuel consumption performance) and can attain enhanced steering stability. The tire rubber composition includes 100 parts by mass of a solid rubber (A) having a glass transition temperature (Tg) of not more than -10°C, 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C) , the modified liquid diene rubber (B) satisfying the following (i) to (iv) : (i) the weight average molecular weight (Mw) is 15,000 to 120,000, (ii) the vinyl content is not more than 70 mol%, (iii) the average number of the functional groups per molecule of the modified liquid diene rubber (B) is 1 to 30, and (iv) the glass transition temperature (Tg) is not more than 0°C.

IPC Classes  ?

• C08L 15/00 - Compositions of rubber derivatives
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The invention provides a high-grip tire rubber composition excellent in steering stability, rolling resistance performance and abrasion resistance, and a tire tread, a bead filler, a tire belt and a pneumatic tire which each partially include the composition. The high-grip tire rubber composition includes 100 parts by mass of a solid rubber (A), the solid rubber (A) including not less than 60 mass% of a styrene butadiene rubber with 20 mass% or more styrene content, 0.1 to 90 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 150 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is 15,000 to 120,000, and (ii) the vinyl content is not more than 70 mol%.

IPC Classes  ?

• C08L 9/06 - Copolymers with styrene
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

The invention provides a tire rubber composition capable of giving crosslinked products having excellent properties including mechanical strength such as abrasion resistance, a crosslinked product of the composition, and a tire tread, a bead filler, a tire belt and a pneumatic tire which each partially include the composition or the crosslinked product and which each exhibit satisfactory dry grip performance plus excellent wet grip performance and ice grip performance and can attain enhanced steering stability. The tire rubber composition includes 100 parts by mass of a solid rubber (A) having a glass transition temperature (Tg) of not more than -100C, 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) to (iv): (i) the weight average molecular weight (Mw) is not less than 1,000 and less than 15,000, (ii) the vinyl content is not more than 70 mol%, (iii) the average number of the functional groups per molecule of the modified liquid diene rubber (B) is 1 to 20, and (iv) the glass transition temperature (Tg) is not more than 0°C.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08K 5/54 - Silicon-containing compounds
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 15/00 - Compositions of rubber derivatives

Abstract

The invention provides a heavy-duty tire rubber composition excellent in wet grip performance and steering stability, and a tire tread, a bead filler, a tire belt and a heavy-duty tire which each partially include the composition. The heavy-duty tire rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is not less than 1,000 and not more than 120,000, and (ii) the vinyl content is not less than 30 mol% and less than 70 mol%.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08K 5/54 - Silicon-containing compounds
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 15/00 - Compositions of rubber derivatives

Abstract

The present invention relates to a thermoplastic resin composition containing an olefin-based polymer (a) and a hydrogenated block copolymer (b), wherein: with respect to the olefin-based polymer (a), an amount of heat of crystal fusion (6,11) measured at a heating rate of 10°C/min in differential scanning calorimetry is less than 80 J/g; the hydrogenated block copolymer (b) is a hydrogenated product of a block copolymer composed of a polymer block (A) consisting mainly of a structural unit derived from an aromatic vinyl compound and a polymer block (B) consisting mainly of a structural unit derived from a conjugated diene compound; the content of the polymer block (A) in the hydrogenated block copolymer (b) is 1 to 60% by mass; a proportion of a vinyl bond amount of the polymer block (B) is 50 to 95 mol%; the content of the hydrogenated block copolymer (b) in the thermoplastic resin composition is from 1 to 30 parts by mass relative to 100 parts by mass of the total amount of the olefin-based polymer (a) and the hydrogenated block copolymer (b); and the olefin-based polymer (a) and the polymer block (B) of the hydrogenated block copolymer (b) are made miscible with each other on a molecular level.

IPC Classes  ?

• 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
• C09J 11/06 - Non-macromolecular additives organic
• C09J 123/02 - Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
• C09J 153/02 - 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 5/00 - Manufacture of articles or shaped materials containing macromolecular substances

Abstract

Provided is a gel composition with which a protective tube or cable can be easily filled during cable production; which has a high dropping point (temperature of the change from a semisolid to a liquid); which exhibits a behavior whereby the filler does not outflow from the interior over a broad temperature range, even when the protective tube or cable has been ruptured; and which can stop the infiltration of water into the interior. The gel composition contains (a) a base oil and (b) a hydrogenated block copolymer. The hydrogenated block copolymer (b) is the hydrogenate of a diblock copolymer comprising a polymer block (A) composed mainly of a structural unit derived from an aromatic vinyl compound and a polymer block (B) composed mainly of a structural unit derived from a conjugated diene compound. The content of the polymer block (A) in the hydrogenated block copolymer (b) is 38.0-45.0 mass%, and the content of the hydrogenated block copolymer (b) in the gel composition is 1-20 parts by mass per 100 parts by mass of the total of the base oil (a) and the hydrogenated block copolymer (b).

IPC Classes  ?

• C08L 91/00 - Compositions of oils, fats or waxes; Compositions of derivatives thereof
• C08J 3/075 - Macromolecular gels
• 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
• G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
• H01B 7/18 - Protection against damage caused by external factors, e.g. sheaths or armouring by wear, mechanical force or pressure

Abstract

The present application provides a flexible linear light emitting element capable of being flexibly bent along the shape of an object to be decorated or to be bent in accordance with a linearly represented decorative letter or decorative pattern of any kind and excelling in light emitting performance such as luminance as well as a method of producing the same. The optical fiber type linear light emitting element includes a bar-shaped extrusion-molded article in which a clad layer made from a fluorine resin is integrally formed over the periphery of a cored layer made from an acrylic thermoplastic elastomer; and a block copolymer of methyl methacrylate and butyl acrylate or a block copolymer of methyl acrylate and butyl acrylate, the flexural modulus of elasticity (according to ASTM D790) of the copolymers ranging from 50 to 500 Mpa, is adopted for the material of the cored layer.

IPC Classes  ?

• G02B 6/00 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
• F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
• G02B 6/02 - Optical fibres with cladding
• G02B 6/036 - Optical fibres with cladding core or cladding comprising multiple layers
• G09F 13/00 - Illuminated signs; Luminous advertising

Abstract

Provided are: a resin composition which has a high transparency, excellent light guiding properties and excellent light emitting properties and shows a small chromaticity change when light is guided thereinto; and a molded article such as an optical component comprising the resin composition. The resin composition comprises an acrylic block copolymer (A) and a light diffusing agent (B), wherein: the acrylic block copolymer (A) has at least one structure in which polymer blocks (a1) comprising a methacrylate unit as a main component are attached to both ends of a polymer block (a2) comprising an acrylate unit as a main component; the weight-average molecular weight is 10,000-150,000; the tensile modulus is 1-1,500 MPa; the light diffusing agent (B) is rutile-type titanium oxide having an average particle size of 0.5-2.0 µm; and the light diffusing agent (B) is contained in an amount of 0.5-10 ppm (by mass) relative to the acrylic block copolymer (A).

IPC Classes  ?

• 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
• C08K 3/22 - Oxides; Hydroxides of metals
• C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only

Abstract

Disclosed is a leather-like sheet having a lightness L* of 35 or less, and including a fiber structure including fiber dyed with a dye composition including C.I. Basic Blue 3 and at least one blue cationic dye other than C.I. Basic Blue 3, and an elastic polymer contained in internal voids of the fiber structure, or the fiber structure. Also disclosed is a leather-like sheet having a lightness L* of 35 or less, and including a fiber structure including fiber dyed with an azo-based blue cationic dye, and an elastic polymer contained in internal voids of the fiber structure, wherein the leather-like sheet or the fiber structure has a color difference (AE), determined when treated for 48 hours under moist and hot conditions of 80°C and a moisture of 90%, of AE.Less-Than Or Equal To.2. or the fiber structure.

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
• D06P 3/52 - Polyesters

Abstract

A composition for removing a sulfur-containing compound in a liquid or in a gas. This composition contains an aldehyde and a polyvalent amine represented by general formula (1). The sulfur-containing compound is at least one compound selected from the group consisting of hydrogen sulfide and compounds containing an -SH group.

IPC Classes  ?

• B01D 53/14 - 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 absorption
• C10G 29/20 - Organic compounds not containing metal atoms
• C10L 3/10 - Working-up natural gas or synthetic natural gas

Abstract

Provided are a resin composition, a pellet, a veil, a damping material, a sound insulation material, and an intermediate film for laminated glass having even more superior damping ability. The resin composition is specifically a resin composition containing the block copolymer below or a hydrogenation product (X) thereof and a tackifying resin (Y) having a glass transition temperature of -50 to 45°C, wherein the absolute value of the difference of Tg(X) and Tg(Y) is 50°C or less, where Tg(X) is the glass transition temperature of a polymer block (B) of the block copolymer or hydrogenation product (X) thereof, and Tg(Y) is the glass transition temperature of the tackifying resin (Y). Block copolymer or hydrogenation product (X) thereof: a block copolymer or a hydrogenation product thereof having polymer blocks (A) containing over 70 mol% of structural units derived from an aromatic vinyl compound, and polymer blocks (B) having at least 30 mol% of structural units derived from at least one species selected from the group consisting of a conjugated diene compound and isobutylene, wherein the content of the polymer blocks (A) in the block copolymer is no more than 25% by mass.

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
• C03C 27/12 - Laminated glass
• C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
• C09K 3/00 - Materials not provided for elsewhere
• G10K 11/162 - Selection of materials

Abstract

Provided is a rubber composition comprising 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound represented by formula (1), and 20 to 200 parts by mass of a filler (C), the filler comprising silica. The modified liquid diene rubber (B) has a weight average molecular weight (Mw) of not less than 3,000 and less than 15,000, a vinyl content of not more than 70 mol%, and an average number of functional groups derived from the silane compound, per molecule, of 1 to 9. When crosslinked, the rubber composition exhibits excellent abrasion resistance and tensile strength. Also provided are a crosslinked product of the rubber composition, and a tire having a portion comprising the composition or the crosslinked product and exhibiting enhanced rolling resistance performance and steering stability.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

Provided is a rubber composition comprising 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound represented by the formula (1), and 20 to 200 parts by mass of a filler (C). The modified liquid diene rubber (B) has a weight average molecular weight (Mw) of 15,000 to 100,000, a vinyl content of not more than 70 mol%, and an average number of functional groups per molecule of 1 to 20. When crosslinked, the rubber composition exhibits excellent abrasion resistance and tensile strength. Also provided are a crosslinked product of the rubber composition, and a tire which includes a portion including the composition or the crosslinked product and which attains enhanced rolling resistance performance and enhanced steering stability.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

Provided is a composition for removing a sulfur-containing compound in a liquid or a gas, wherein the sulfur-containing compound is hydrogen sulfide, a compound containing an -SH group, or a mixture thereof, and the composition contains, as an active ingredient, an a,ß-unsaturated aldehyde represented by general formula (1) (wherein: R1 and R2 each independently represent an alkyl group having 1-10 carbon atoms, an alkenyl group having 2-10 carbon atoms, or an aryl group having 6-12 carbon atoms, or R1 and R2 are bonded to each other to form an alkylene group having 2-6 carbon atoms; and R3 represents a hydrogen atom or an alkyl group having 1-5 carbon atoms, or R3 is bonded with R1 to form an alkylene group having 2-6 carbon atoms).

IPC Classes  ?

• B01J 20/22 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
• C10G 29/24 - Aldehydes or ketones
• C10L 3/10 - Working-up natural gas or synthetic natural gas

Abstract

A hydrogenated block copolymer which is a product of hydrogenation of a block copolymer that comprises a polymer block (A) comprising more than 70 mol% structural units derived from an aromatic vinyl compound and a polymer block (B) comprising 30 mol% or more structural units derived from at least one compound selected from the group consisting of conjugated diene compounds and isobutylene, the hydrogenated block copolymer satisfying the following requirements (1) and (2). Requirement (1): The content of the polymer block (A) in the block copolymer is 1-30 mass%. Requirement (2): In cases when the polymer block (B) is regarded as having a structure which has a degree of hydrogenation of 100 mol%, the structural units derived from at least one compound selected from the group consisting of conjugated diene compounds and isobutylene have an average backbone methylene chain length of 1.0-6Ø

IPC Classes  ?

• 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
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• C03C 27/12 - Laminated glass
• 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

Abstract

Provided are: a pressure-sensitive adhesive composition which can be thermally melted at a relatively low temperature to enable hot-melt bonding and which is excellent in terms of adhesive force, holding power, and tack; and a pressure-sensitive adhesive product including the pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition is a hot-melt pressure-sensitive adhesive composition which includes an acrylic block copolymer (I) that comprises at least one polymer block (A) comprising methacrylic ester units and at least one polymer block (B) comprising acrylic ester units, wherein the methacrylic ester units constituting the polymer block (A) comprise units of methyl methacrylate (a1) and units of a methacrylic ester (a2) represented by the general formula CH2=C(CH3)-COOR1 (1) (wherein R1 represents a C2-16 organic group).

IPC Classes  ?

• C09J 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
• 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
• C09J 133/10 - Homopolymers or copolymers of methacrylic acid esters

Abstract

Provided are: a resin composition capable of giving a liquid-packaging container (LPC) with high flexibility and low-temperature impact resistance, excellent in low-temperature heat seal and bag-breakage strength; a heat sealing agent, a film for LPCs, a LPC, and a liquid discharge member containing or obtained directly or indirectly using the resin composition; and a medical container having the LPC. The resin composition contains a polypropylene-based resin (a) and a hydrogenated block copolymer (b) having a Tg of -50 to -35 C that is a hydrogenation product of a block copolymer containing polymer blocks (A) mainly containing a structural unit derived from an aromatic vinyl compound and (B) mainly containing a structural unit derived from: isoprene, or a mixture of isoprene and butadiene in a ratio of 5/95 to 95/5. (a) forms a continuous phase and (b) forms an island disperse phase. The tensile shear adhesion strength is 1.0 MPa.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• A61J 1/10 - Bag-type containers
• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B65D 30/02 - Sacks, bags or like containers characterised by the material used
• B65D 65/40 - Applications of laminates for particular packaging purposes
• B65D 75/58 - Opening or contents-removing devices added or incorporated during package manufacture
• 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

Abstract

A dispersion stabilizer for crude oils which contains a vinyl-alcohol-based polymer, characterized in that the vinyl-alcohol-based polymer has a degree of saponification greater than 70 mol% but not greater than 82 mol% and has a total content of carboxyl groups and lactone rings of 0.02-1 mol% with respect to all the constituent units of the vinyl-alcohol-based polymer. Thus, a dispersion stabilizer for crude oils is provided with which it is possible to disperse or emulsify a high-viscosity crude oil to thereby lower the viscosity and to make the obtained crude-oil dispersion or emulsion present stably for a long time.

IPC Classes  ?

• C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
• C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

Abstract

Provided is a method for stably producing a thermoplastic polymer composition by easily supplying a polyisobutylene having a peak top molecular weight (Mp) of 5,000-80,000 to a hydrogenated block copolymer. Specifically provided is a method for producing a thermoplastic polymer composition containing (a) a hydrogenated block copolymer and (b) a polyisobutylene having a peak top molecular weight (Mp) of 5,000-80,000 in terms of standard polystyrene as determined by gel permeation chromatography, which comprises the following first step and second step. First step: a step for supplying the polyisobutylene (b) to a twin screw/single screw counter-rotating extruder and plasticizing the polyisobutylene (b) Second step: a step having the following step (i) and step (ii) (i) a step for supplying the hydrogenated block copolymer (a) to a twin screw extruder (ii) a step for supplying the polyisobutylene (b) plasticized in the first step to the twin screw extruder via a quantitative pump and kneading the plasticized polyisobutylene (b) together with the hydrogenated block copolymer (a) supplied in the step (i)

IPC Classes  ?

• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• B29B 7/20 - Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws

Abstract

Provided is an acrylic block copolymer which has excellent transparency, profile extrusion characteristics, and molded-body surface smoothness, and which also has excellent light-guiding characteristics. The acrylic block copolymer comprises a polymer block (a1) principally composed of a methacrylic acid ester unit and a polymer block (a2) principally composed of acrylic acid ester unit, the refractive index of the acrylic block copolymer being 1.485 to 1.495, and the order-disorder transition temperature (ODTT) thereof being 260°C or less.

IPC Classes  ?

• 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
• G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

Abstract

Provided are: an acrylic thermoplastic polymer composition for laminating which, when used for laminating a layer constituted of a plasticizer-containing polymer composition to a layer constituted of an acrylic thermoplastic composition, inhibits the plasticizer from migrating to the layer constituted of an acrylic thermoplastic polymer composition and which is suitable for obtaining laminates having excellent durability; and a laminate which comprises a layer constituted of the plasticizer-containing polymer composition and a layer constituted of the acrylic thermoplastic polymer composition for laminating and formed on one or both surfaces of said layer. In the case where the plasticizer-containing polymer is a vinyl-chloride-based polymer, the polymer composition can retain sufficient adhesive force after being bonded to the layer comprising the vinyl-chloride-based polymer. A pressure-sensitive adhesive product obtained using the composition is also provided. The acrylic thermoplastic polymer composition for laminating is for use in laminating to a layer constituted of a plasticizer-containing polymer composition, and includes an acrylic block copolymer (I) having at least one polymer block (A) made up of methacrylic ester units and at least one polymer block (B) made up of acrylic ester units, the acrylic ester units constituting the polymer block (B) contained in the acrylic block copolymer (I) including units of an acrylic ester (1) represented by the general formula CH2=CH-COOR1 (1) (wherein R1 represents a C1-3 organic group).

IPC Classes  ?

• 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
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising acrylic resin
• 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
• C08K 5/10 - Esters; Ether-esters
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08L 63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers

Abstract

Provided is a hydrogenated block copolymer prepared by hydrogenating a block copolymer that comprises at least a polymer block (A) consisting mainly of a structural unit derived from an aromatic vinyl compound, and a polymer block (B) consisting mainly of a structural unit derived from isoprene, a structural unit derived from butadiene, or a structural unit derived from a mixture of isoprene and butadiene. Hydrogenated block copolymers as provided herein are capable of giving a resin composition having good moldability and mechanical strength and may be used in the manufacture of adhesives, molded articles, packaging containers, and other products.

IPC Classes  ?

• 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
• C08C 19/02 - Hydrogenation
• C08L 23/10 - Homopolymers or copolymers of propene
• 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

Abstract

A hydrogenated block copolymer obtained by hydrogenating a block copolymer containing a polymer block (A) comprising structural units derived from an aromatic vinyl compound, a polymer block (B) comprising structural units derived from farnesene, and a polymer block (C) comprising structural units derived from a conjugated diene other than farnesene, wherein the block copolymer of the hydrogenated block copolymer contains at least two polymer blocks (A), at least one polymer block (B), and at least one polymer block (C); at least one polymer block (B) is at a terminal, and the hydrogenation rate of the carbon-carbon double bonds in the polymer block (B) and polymer block (C) is 50 mol% or higher.

IPC Classes  ?

• 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
• D04H 1/4282 - Addition polymers
• D04H 3/007 - Addition polymers
• B32B 27/00 - Layered products essentially comprising synthetic resin
• C08F 8/04 - Reduction, e.g. hydrogenation
• C08J 5/18 - Manufacture of films or sheets
• 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
• C09J 153/02 - Vinyl aromatic monomers and conjugated dienes
• D01F 6/28 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

[Problem] To provide: an acrylic block copolymer with which it is possible to present exceptional adhesive strength, cohesive strength, holding power, tack, and-hot melt coating properties when used in a pressure-sensitive adhesive composition; and a pressure-sensitive adhesive composition containing this block copolymer. [Solution] An acrylic block copolymer (I) having at least two polymer blocks (A) comprising methacrylic acid ester units and at least one polymer block (B) comprising an acrylic acid ester unit, the acrylic block copolymer (I) having an (A)-(B)-(A) block structure, a weight-average molecular weight (Mw) of 30,000-100,000, and a melt viscosity at 100°C of 100,000 mPa·s or less as measured by a type-B viscometer.

IPC Classes  ?

• 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
• C09J 11/06 - Non-macromolecular additives organic
• C09J 133/08 - Homopolymers or copolymers of acrylic acid esters
• C09J 133/10 - Homopolymers or copolymers of methacrylic acid esters
• C09J 153/00 - Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers

Abstract

The present invention relates to a process for producing a copolymer having a high oil absorption by separating the solvent from a copolymer solution containing the copolymer in a simple manner with a less energy consumption. The process, which is for producing a copolymer by separating the solvent from a copolymer solution, comprises the following steps A to C. Step (A) in which the solid concentration (Ts) of the copolymer solution is regulated to a value within the range of 5=Ts=60 in terms of mass%; step (B) in which the copolymer solution obtained in the step (A) is heated to a temperature (T) (ºC) within a specific range; and step (C) in which the copolymer solution heated in the step (B) is ejected from a specific nozzle at a linear velocity of 1-100 m/sec to separate the solvent in a 0-200ºC inert gas stream.

IPC Classes  ?

• C08F 6/12 - Separation of polymers from solutions
• C08F 2/06 - Organic solvent
• C08F 4/46 - Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides selected from alkali metals
• C08F 8/04 - Reduction, e.g. hydrogenation
• C08F 212/08 - Styrene
• C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers
• 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
• D01F 6/78 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products

Abstract

The present invention provides a modified liquid diene rubber that can be used in a curable resin composition, wherein said resin composition containing said modified liquid diene rubber exhibits a much faster curing speed compared to prior art, and excellent post-curing mechanical properties, transparency and heat resistance. The present invention also provides a resin composition containing said modified liquid diene rubber. Prepared is a modified liquid diene rubber comprising: a modified group (p), part of which contains a (meth)acryloyl group; and a monomer unit (a1) derived from a conjugated diene compound. The hydrogenation rate of a carbon-carbon double bond derived from the conjugated diene compound is 30-95 mol%, and the functional group equivalent of the modified group (p) is 700-20,000 g/eq. Also prepared is a resin composition containing said modified liquid diene rubber.

IPC Classes  ?

• C08C 19/28 - Reaction with compounds containing carbon-to-carbon unsaturated bonds
• C08C 19/02 - Hydrogenation
• C08F 290/12 - Polymers provided for in subclasses or
• C09J 4/06 - Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
• C09J 11/06 - Non-macromolecular additives organic
• C09J 109/00 - Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

Provided is a sealant composition containing 1-4000 parts by mass of a filler (B) with respect to 100 parts by mass of a farnesene polymer (A).

IPC Classes  ?

• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
• C08K 3/26 - Carbonates; Bicarbonates
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 47/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers

Abstract

The present invention relates to a method for producing, at high yield, a high-purity, high-activity Tebbe complex having excellent storage stability, said method characterized in that bis(cyclopentadienyl)titanium dichloride and trimethylaluminum are reacted in the presence of a solvent such that the solubility of the Tebbe complex with respect to 1 g of the solvent at 25°C is 0.5 mmol/g or less.

IPC Classes  ?

• C07F 19/00 - Metal compounds according to more than one of main groups
• C07F 17/00 - Metallocenes
• C07F 5/06 - Aluminium compounds
• C07F 7/28 - Titanium compounds

Abstract

A film for a liquid packaging container, comprising at least one of a layer containing a resin composition (X) containing a polypropylene resin (a) and at least one of a hydrogenated block copolymer (b), the hydrogenated block copolymer (b) being a hydrogenated product of a block copolymer containing a polymer block (A) mainly containing an aromatic vinyl compound unit, and a polymer block (B) mainly containing an isoprene (Ip) unit, a butadiene (Bd) unit, or isoprene (Ip) and butadiene (Bd) units, in the resin composition (X), the hydrogenated block copolymer (b) having a phase separation structure having formed therein both (i) an island phase having a long axis of 1 um or more, or a bicontinuous structure, and (ii) an island phase having a long axis of 300 nm or less, and in the resin composition (X), the mass ratio ((a)/((a)+(b))) of the polypropylene resin (a) and the hydrogenated block copolymer (b) being from 61/100 to 95/100.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• A61J 1/05 - Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids

Abstract

[Problem] To provide a method for producing an anionic polymer in an industrially advantageous manner whereby, at the time of anionically polymerizing a monomer by using a solvent having a higher boiling point than the polymerization temperature at atmospheric pressure, temperature control can be achieved by quickly removing the heat of the polymerization reaction with a simple device. [Solution] Disclosed is a method for producing an anionic polymer, the method involving anionically polymerizing a conjugated diene, an aromatic vinyl compound, or a mixture thereof under a condition where the amount of an inert gas present in 1 kg of a solvent having a higher boiling point than the polymerization temperature at atmospheric pressure is 20 mmol or less.

IPC Classes  ?

• C08F 2/06 - Organic solvent
• 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

Abstract

Provided are: a thermoplastic elastomer composition having excellent mechanical characteristics and wear resistance; and a molded article comprising said thermoplastic elastomer composition. Specifically, a thermoplastic elastomer composition and a molded article comprising said thermoplastic elastomer composition are provided, said thermoplastic elastomer composition being obtained by heat treating, under melting conditions, a mixture containing: 100 parts by mass of at least one type of addition polymerization block copolymer (I) selected from a group consisting of a block copolymer and a hydrogenated product thereof, said block copolymer having a polymer block A mainly comprising an aromatic vinyl compound unit and containing at least 1% by mass of a structural unit (a) derived from a styrene having a C1-8 alkyl group bonded to a benzene ring and a polymer block B mainly comprising a conjugated diene compound unit; 10-300 parts by mass of an olefin resin (II); 0.01-20 parts by mass of a cross-linking agent (III); 1-50 parts by mass of a cross-linking agent (IV) having one methacryloyl group, one acryloyl group, and at least one hydroxyl group; and 30-250 parts by mass of a rubber-softening agent (V).

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
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
• C08K 5/01 - Hydrocarbons
• C08K 5/103 - Esters; Ether-esters of monocarboxylic acids with polyalcohols
• C08K 5/14 - Peroxides
• 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

Abstract

Provided are: a stretchable non-woven fabric including crimped fibers and fulfilling formula (s65-s55)/(s30-s20) = 2.5, when the stress s (N/50 mm) at a strain e of 20%, 30%, 55%, and 65% is s20, s30, s55, and s65, respectively, in a stress-strain curve from a tensile test in at least one planar direction; and a bandage using same. This non-woven fabric and bandage have little deterioration in stretching performance when used repeatedly and have excellent repetition durability.

IPC Classes  ?

• D04H 1/50 - 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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres

Abstract

The purpose of the present invention is to provide: a thermoplastic polymer composition which is capable of adhering to synthetic resins, ceramics, and metals or the like, without having to perform primer treatment, can be handled as a moulded article, and exhibits flexibility, excellent adhesive properties in a broad temperature range spanning from a low temperature to room temperature, and high thermal creep resistance; and a moulded article using said thermoplastic polymer composition. This thermoplastic polymer composition includes 10-100 parts by mass of a polar-group-containing polypropylene-based resin (B) per 100 parts by mass of a hydrogenated block copolymer (A) obtained by hydrogenating a block copolymer which includes: a polymer block (S) including aromatic vinyl compound units; and a polymer block (D) including conjugated diene compound units. The hydrogenated block copolymer (A) is a mixture which includes: a hydrogenated block copolymer (A1) obtained by hydrogenating a block copolymer which has at least one tand maximum value in the range -60 to -40°C, and which is represented by formula (i), namely (S-D)n, or formula (ii), namely (D-S)n-D (in formulae (i) and (ii), S is a polymer block including aromatic vinyl compound units, D is a polymer block including conjugated diene compound units, and n is an integer in the range of 1-5); and a hydrogenated block copolymer (A2) obtained by hydrogenating a block copolymer represented by formula (iii), namely (S-D)m-S (in formula (iii), S is a polymer block including aromatic vinyl compound units, D is a polymer block including conjugated diene compound units, and m is an integer in the range of 1-5). The mass ratio of the hydrogenated block copolymer (A1) to the hydrogenated block copolymer (A2) is in the range of 20:80 to 99:1.

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
• B29C 65/48 - Joining of preformed parts; Apparatus therefor using adhesives
• 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
• 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
• C09J 123/14 - Copolymers of propene
• C09J 123/26 - Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers modified by chemical after-treatment
• C09J 129/14 - Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
• C09J 153/02 - Vinyl aromatic monomers and conjugated dienes

Abstract

Provided is a thermoplastic elastomer composition comprising a crosslinked composition (X) and a hydrogenated block copolymer (Y) with a mass ratio of (X)/(Y)=10/90 to 90/10. The crosslinked composition (X) is obtained by heat-treating, under molten condition, and comprises a block copolymer or hydrogenated product thereof comprising a polymer derived from an aromatic vinyl compound and a polymer derived from a diene compound, an olefin-based resin, a crosslinking agent, a crosslinking adjuvant, and a softener for rubber. The hydrogenated block copolymer (Y) is obtained by hydrogenating a block copolymer having at least two polymer blocks of an aromatic vinyl compound and at least one polymer block of a conjugated diene compound. The thermoplastic elastomer compositions have excellent mechanical characteristics, abrasion resistance and surface smoothness.

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
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
• C08K 5/01 - Hydrocarbons
• C08K 5/103 - Esters; Ether-esters of monocarboxylic acids with polyalcohols
• C08K 5/14 - Peroxides
• 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

Abstract

[Problem] To provide a method for manufacturing an industrially useful hydrogenated polymer, whereby a high rate of hydrogenation can be achieved using an amount of catalyst that is sufficiently small that there is no need for a decalcification step. [Solution] A method for manufacturing a hydrogenated polymer, characterized by comprising hydrogenating, with molecular hydrogen, a carbon-carbon double bond based on a conjugated diene structural unit of a polymer in which at least a portion of a living polymer obtained by polymerizing monomers containing at least one type of conjugated diene using an organic alkali metal compound as a polymerization initiator is terminated by molecular hydrogen, in the presence of a silane compound having at least one silyl hydride bond and an organic metal compound represented by general formula (I). (In the formula, R1-R10 are as defined in the specification.)

IPC Classes  ?

• C08F 8/04 - Reduction, e.g. hydrogenation
• 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

Abstract

Provided are: a water absorbent laminate which comprises a first fiber layer that is configured of a first fiber assembly containing first hydrophilic fibers and a second fiber layer that is configured of a second fiber assembly containing 80% by mass or more of wet heat adhesive fibers, and wherein a surface of the first fiber layer, said surface being on the reverse side of the second fiber layer-side surface, has an water absorption rate of 10 seconds or less as determined in accordance with a dripping method defined in JIS L 1907; and a method for producing the water absorbent laminate. This water absorbent laminate can additionally comprise, between the first fiber layer and the second fiber layer, a third fiber layer that is configured of a third fiber assembly containing second hydrophilic fibers.

IPC Classes  ?

• D04H 1/4334 - Polyamides
• D04H 1/492 - 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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
• D04H 1/542 - Adhesive fibres
• A47L 13/16 - Cloths; Pads; Sponges
• B01J 20/26 - Synthetic macromolecular compounds
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D04H 1/46 - 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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

Provided is a liquid packaging container which has good flexibility, transparency, high heat-seal strength, high bag breaking strength at ambient temperature and lower temperatures, and low (inner layer)-(inner layer) adhesiveness which are properties required for liquid packaging containers for medical use. Specifically provided is a liquid packaging container composed of a laminate having at least three layers, i.e., an inner layer comprising a resin composition (Y) as mentioned below, an intermediate layer, and an outer layer comprising a resin composition (Z) as mentioned below, wherein the intermediate layer comprises a resin composition (X) as mentioned below. The resin composition (X): a resin composition comprising 100 parts by mass of a polypropylene resin (1), 5 to 95 parts by mass of a specific thermoplastic elastomer (2) and 10 to 95 parts by mass of a specific ethylene-a-olefin copolymer (3). The resin composition (Y): a resin composition comprising 100 parts by mass of a polypropylene resin (1') and 5 to 250 parts by mass of a specific thermoplastic elastomer (2') (wherein a specific ethylene-a-olefin copolymer is not contained or, if contained, the specific ethylene-a-olefin copolymer is contained in an amount of less than 10 parts by mass). The resin composition (Z): a resin composition comprising 100 parts by mass of a polypropylene resin (1'') and 0 to 35 parts by mass of a specific thermoplastic elastomer (2'').

IPC Classes  ?

• B65D 65/40 - Applications of laminates for particular packaging purposes
• A61J 1/10 - Bag-type containers
• B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• 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
• C08L 23/08 - Copolymers of ethene
• C08L 23/12 - Polypropene
• 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

Abstract

The present invention provides a slurry additive that, when used in a construction slurry (for example, in a drilling mud or drilling cement slurry used in well drilling, etc.) or the like, is low cost and can suppress dehydration at high temperatures as well as viscosity increase. The present invention is a powdered slurry additive that contains a vinyl alcohol polymer, the vinyl alcohol polymer having a solubility of 25% or less when soaked for 3 hours in 60 °C hot water, a degree of saponification of 99.5 mol% or more, an average degree of polymerization of 1,500-4,500, and a 1,2-glycol bond content of 1.8 mol% or less. The slurry additive passes through a sieve that has a nominal opening of 1.00 mm.

IPC Classes  ?

• C09K 8/12 - Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
• C08F 8/12 - Hydrolysis
• C08F 16/06 - Polyvinyl alcohol
• C08L 29/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing organic binders only
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Abstract

In order to provide a composition capable of safely and efficiently removing a sulphur-containing compound included in a hydrocarbon, particularly hydrogen sulphide, a compound containing a -SH group, or a mixture of these, this composition for removing sulphur-containing compounds in hydrocarbons is characterized by the sulphur-containing compound being a hydrogen sulphide, a compound containing a -SH group, or a mixture of these, and by the composition containing as an effective component thereof a C6-16 dialdehyde.

IPC Classes  ?

• C10G 29/24 - Aldehydes or ketones
• C10L 3/10 - Working-up natural gas or synthetic natural gas

Abstract

Provided are rubber compositions comprising 100 parts by mass of a solid rubber (A), 0.1 to 10 parts by mass of a modified liquid diene rubber (B), and 20 to 150 parts by mass of a filler (C). Rubber (B) is obtained by adding a modifying agent to an unmodified liquid diene rubber (B'), and has functional groups derived from the modifying agent, which functional groups are at least one selected from carboxylic anhydride groups, dicarboxylic acid monoester groups and dicarboxylic acid monoamide groups. Filler (C) comprises a silica. The rubber compositions possess excellent filler dispersibility, and are useful for providing crosslinked products that have excellent abrasion resistance and tires that exhibit enhanced rolling resistance performance, steering stability, and ice grip performance.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08C 19/28 - Reaction with compounds containing carbon-to-carbon unsaturated bonds
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

Provided are rubber compositions comprising 100 parts by mass of a solid rubber (A), 0.1 to 10 parts by mass of a modified liquid diene rubber (B), and 20 to 150 parts by mass of a filler (C). Rubber (B) is obtained by adding a modifying agent to an unmodified liquid diene rubber (B'), and has functional groups derived from the modifying agent, which functional groups are at least one of carboxylic anhydride groups, dicarboxylic acid monoester groups and dicarboxylic acid monoamide groups. Filler (C) comprises a silica. The rubber compositions possess excellent filler dispersibility, and are useful for providing crosslinked products that have excellent abrasion resistance and tires that exhibit enhanced rolling resistance performance, steering stability, and ice grip performance.

IPC Classes  ?

• C08L 21/00 - Compositions of unspecified rubbers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08C 19/28 - Reaction with compounds containing carbon-to-carbon unsaturated bonds
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

Provided is a modified liquid diene-based rubber having an acryloyl group or a methacryloyl group, which is highly compatible with various monomers, such as acrylate or methacrylate having relatively high polarity, which can form a curable resin composition containing the modified liquid diene-based rubber with good workability, which has a satisfactory curing rate during curing, and which is capable of providing the curable resin composition that forms a cured product having excellent mechanical properties derived from the modified liquid diene-based rubber and having excellent adhesion to various materials. Also provided is a curable resin composition containing the modified liquid diene-based rubber. The modified liquid diene-based rubber is a modified liquid diene-based rubber (A) having, in a molecule, a modified group (a) containing a (meth) acryloyl group as a part thereof and at least one modified group (b) selected from a dicarboxylic acid monoester and a dicarboxylic acid monoamide (with the proviso that the modified group (b) contains no (meth) acryloyl group as a part thereof) , wherein the functional group equivalent weights of the modified group (a) and the modified group (b) are each in the range of 700 to 40,000 g/eq.

IPC Classes  ?

• C08C 19/34 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with oxygen or oxygen-containing groups
• C08F 290/12 - Polymers provided for in subclasses or
• C08F 299/00 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
• C09J 4/06 - Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
• C09J 113/00 - Adhesives based on rubbers containing carboxyl groups

Abstract

A surface-protecting film according to the present invention is characterized by comprising a polyolefin base layer and an adhesive layer, wherein the adhesive layer contains at least a styrene-type elastomer, an acrylic adhesive agent and an adhesiveness-imparting agent, and the styrene-type elastomer, the acrylic adhesive agent and the adhesiveness-imparting agent are contained in the adhesive layer in amounts of 50 to 90% by mass inclusive, 1 to 40% by mass inclusive and 1 to 49% by mass inclusive, respectively, relative to the whole amount of the adhesive layer.

IPC Classes  ?

• C09J 7/38 - Pressure-sensitive adhesives [PSA]
• C09J 7/22 - Plastics; Metallised plastics

Abstract

Provided is a polyolefin-based resin composition including a hydrogenated block copolymer (A) and a polyolefin-based resin (B), the hydrogenated block copolymer (A) being a hydrogenated product of a block copolymer including a polymer block (a) composed of a constitutional unit derived from an aromatic vinyl compound and a polymer block (b) containing 1 to 100% by mass of a constitutional unit (b1) derived from farnesene and 99 to 0% by mass of a constitutional unit (b2) derived from a conjugated diene other than farnesene; a mass ratio of the polymer block (a) and the polymer block (b) [(a)/(b)] being 1/99 to 55/45; 50 mol% or more of carbon-carbon double bonds in the polymer block (b) being hydrogenated; and a mass ratio of the polyolefin-based resin (B) and the hydrogenated block copolymer (A) [{polyolefin-based resin (B)}/{hydrogenated block copolymer (A)}1 being 1/99 to 99/1. The polyolefin-based resin composition is favorable in flexibility and molding processability, excellent in weather resistance and whitening resistance, and also excellent in rigidity.

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 8/04 - Reduction, e.g. hydrogenation
• 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
• 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

Abstract

The thermoplastic elastomer composition of the present invention is a thermoplastic elastomer composition including a hydrogenated block copolymer (A) and a softening agent (B), the hydrogenated block copolymer (A) being a hydrogenated product of a block copolymer including a polymer block (a) composed of a constitutional unit derived from an aromatic vinyl compound and a polymer block (b) containing 1 to 100% by mass of a constitutional unit (b1) derived from farnesene and 99 to 0% by mass of a constitutional unit (b2) derived from a conjugated diene other than farnesene; a mass ratio of the polymer block (a) and the polymer block (b) [(a)/(b)] being 1/99 to 70/30; 50 mol% or more of carbon-carbon double bonds in the polymer block (b) being hydrogenated; and a content of the softening agent (B) being 20 to 2,000 parts by mass on the basis of 100 parts by mass of the hydrogenated block copolymer (A).

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 8/04 - Reduction, e.g. hydrogenation
• 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
• C08K 5/00 - Use of organic ingredients
• C08L 23/02 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment

Abstract

The purpose of the present invention is to provide PVA having suitable water solubility, highly balanced thickening property and film strength, and excellent storage stability of viscosity in aqueous solution. The present invention is a vinyl alcohol polymer (A) having a ratio (Mw (A)/Mn (A)) of the weight-average molecular weight (Mw (A)) to the number-average molecular weight (Mn (A)) of from 3 to 8, wherein the ratio (Mw (B)/Mn (B)) of the weight-average molecular weight (Mw (B)) to the number-average molecular weight (Mn (B)) of a vinyl alcohol polymer (B) obtained by treating the vinyl alcohol polymer (A) for one hour at 40°C in sodium hydroxide solution is from 2 to less than 3.

IPC Classes  ?

• C08F 8/12 - Hydrolysis
• B41M 5/337 - Additives; Binders
• C08F 16/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical
• C09D 129/04 - Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• C09K 3/00 - Materials not provided for elsewhere
• D06M 15/333 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
• D21H 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes

Abstract

CA 02921890 2016-02-19 - 66 - ABSTRACT The present invention provides a rubber composition capable of producing a rubber molded article that is excellent in rolling resistance performance, steering stability, mechanical strength and abrasion resistance, and a tire obtained by using the rubber composition in at least a part thereof. The present invention relates to a rubber composition including (A) a rubber component including at least one rubber selected from the group consisting of a synthetic rubber and a natural rubber, (B) silica and (C) a modified polymer of farnesene obtained by introducing a functional group into a polymer of farnesene, in which a content of the silica (B) in the rubber composition is from to 150 parts by mass on the basis of 100 parts by mass of the rubber component (A), and a content of the modified farnesene polymer (C) in the rubber composition is from 2 to 10 parts by mass on the basis of 100 parts by 15 mass of the silica (B).

IPC Classes  ?

• C08L 7/00 - Compositions of natural rubber
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives

Abstract

A process for producing a polyhydric alcohol which comprises a step (I) in which a hemiacetal having a specific structure is hydrogenated to obtain a liquid reaction mixture (I) and a step (II) in which water is added to the liquid reaction mixture (I) obtained in the step (I) to further conduct hydrogenation.

IPC Classes  ?

• C07C 29/132 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group
• C07C 29/88 - Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
• C07C 31/20 - Dihydroxylic alcohols
• C07B 61/00 - Other general methods