Provided are a binder solution, an electrode mixture, an electrode, and an all-solid-state battery, which use an organic solvent having low reactivity with a solid electrolyte and in which a binder easily dissolves. The binder solution for an all-solid-state battery contains: a binder made of a vinylidene fluoride polymer; and an organic solvent. The organic solvent is at least one selected from the group consisting of a cyclic ether, a ketone, and an ester. The organic solvent has a boiling point of 60° C. or higher and 160° C. or lower. A residual moisture content of the organic solvent is 300 ppm or less.
A method for producing an electrode member that configures an electrode body of an all-solid-state battery, including: a slurry preparation step for preparing a mixed material slurry that contains at least a binder, solid electrolyte particles, and a nonaqueous solvent with low polarity; a molding step for molding the mixed material slurry into a desired shape; and a drying step for obtaining a molded body by removing the nonaqueous solvent with low polarity from the mixed material slurry after the molding. Then, the temperature of the mixed material slurry is controlled so as not to cause re-crystallization of the binder, which has been dissolved in the nonaqueous solvent with low polarity, at least until the initiation of the molding step. Consequently, it is possible to stably provide an all-solid-state battery that has low battery resistance, while improving electrode member production efficiency by preventing gelation of a mixed material slurry.
The plant growth regulator according to an embodiment of the present invention contains an extract of an ergothioneine-producing microorganism as an active ingredient. The extract contains ergothioneine.
A downhole tool securing device and a frac plug which are excellent in setting properties and water pressure resistance and have excellent fracturing properties. A downhole tool securing device (slips) of a frac plug according to one embodiment of the present invention includes a button containing a powder metallurgy material and having a compressive elastic modulus of at least 13.5 GPa and a toughness of 0.23 GJ/m3 or greater and 1.0 GJ/m3 or less.
Provided is a molded product having small anisotropy of strength in a MD direction and a TD direction and a processed article thereof. A molded product (10) includes a glycolic acid polymer and a plurality of fibers (11). The fibers (11) include the fibers oriented in the MD direction and the fibers oriented in a direction along a tangent line to concentric circles in a cross-section orthogonal to the MD direction at a specific ratio.
VINYLIDENE FLUORIDE POLYMER COMPOSITION AND METHOD OF PRODUCING SAME, RESIN COMPOSITION, ELECTRODE MIXTURE, AND ELECTRODE CONTAINING THESE, AND METHOD OF PRODUCING SAME
An objective is to provide a vinylidene fluoride polymer composition that is difficult to swell and dissolve in N-methyl-2-pyrrolidone and can form an electrode with a smooth surface. The vinylidene fluoride polymer composition contains a vinylidene fluoride polymer with a melting point of 130° C. or higher. When the vinylidene fluoride polymer composition and N-methyl-2-pyrrolidone are mixed to prepare a vinylidene fluoride polymer dispersion with a content of the vinylidene fluoride polymer of 6 mass %, a ratio of a viscosity of the vinylidene fluoride polymer dispersion at 30° C. to a viscosity of N-methyl-2-pyrrolidone at 30° C. is 20 or less, and when the vinylidene fluoride polymer dispersion is stirred and then allowed to stand for 15 minutes, a rate of change in content of the vinylidene fluoride polymer in an upper 40 volume % area of the vinylidene fluoride polymer dispersion before and after the standing is 2 mass % or less.
To suppress change in a surface resistance value under a high-temperature or high-humidity environment in a transparent conductive piezoelectric film including a transparent piezoelectric film made of a fluororesin. A transparent conductive piezoelectric film includes a transparent piezoelectric film made of a fluororesin, a transparent coating layer, and a transparent electrode stacked in this order. The total thickness of the coating layer is 0.6 to 4.5 μm. When the transparent conductive piezoelectric film is left to stand in a specific high-temperature environment, the ratio of a resistance value after being left in the environment to a ratio of a resistance value before being left in the environment is 1.30 or less.
To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less.
Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and
Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and
a transparent coating layer having a thickness of 0.20 to 2.5 μm, wherein the transparent coating layer forms an interface with the transparent piezoelectric base film over an entire region overlapping the transparent piezoelectric base film.
A plug that can maintain isolation also in a high-temperature and low salt concentration fluid or water only for a predetermined period of time is provided. A plug (5) for temporarily preventing circulation of a fluid in a well includes or composed of a resin molded article, the resin molded article being formed from a polyglycolic acid resin composition containing a polyglycolic acid and a cyclic carbodiimide compound and having a carbodiimide group concentration of 15 eq/t or greater.
RESIN COMPOSITION, COATING COMPOSITION COMPRISING SAME, ELECTRODE FOR STACKING, SEPARATOR FOR STACKING, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY AND PRODUCTING METHOD THEREFOR
An object is to provide a resin composition excellent in dry adhesion to both a positive electrode and a negative electrode. Provided is a resin composition to solve the above issue, which contains a vinylidene fluoride copolymer containing: 73.7 mass% or more and 96.9 mass% or less of a constituent unit derived from vinylidene fluoride; 0.1 mass% or more and 1.3 mass% or less of a constituent unit containing a carboxy group; and 3 mass% or more and 25 mass% or less of an other constituent unit which does not contain a carboxy group and is derived from a compound copolymerizable with vinylidene fluoride, with the proviso that a total amount of the constituent units constituting the vinylidene fluoride is taken as 100 mass%. A solution obtained by dissolving 4 g of the vinylidene fluoride copolymer in 1 L of N,N-dimethylformamide has an intrinsic viscosity at 30° C. of 0.5 dL/g or more and 3 dL/g or less.
A binder according to an embodiment of the present invention contains: a vinylidene fluoride polymer containing 50 mol % or greater of vinylidene fluoride units; and an oxime.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
13.
POLY (PHENYLENE SULFIDE) RESIN COMPOSITION AND VIBRATION DAMPING MATERIAL INCLUDING SAME
A poly(phenylene sulfide) resin composition having high loss factors at 50° C. or higher and 100° C. or lower is provided. The poly(phenylene sulfide) resin composition contains poly(p-phenylene sulfide) and poly(m-phenylene sulfide).
An object of the present invention is to provide a method of producing an alkene using a solvent that has little decrease in production rate over time and is easy to recover and recycle.
An object of the present invention is to provide a method of producing an alkene using a solvent that has little decrease in production rate over time and is easy to recover and recycle.
The method of producing an alkene, which solves the problem, includes: a step of contacting a solution containing an alcohol having three or more carbon atoms and a hydroxide of an alkali metal and/or an alkaline earth metal with a halogenated alkane.
Provided are: a halogenated polyphenylene sulfide resin that can make a resin vibration-damping without use of a filler when added to the resin; a resin composition containing the halogenated polyphenylene sulfide resin and another resin; a molded article formed of the resin composition; and a vibration-damping agent for a resin, the vibration-damping agent containing the halogenated polyphenylene sulfide resin. A halogenated polyphenylene sulfide resin is used as a component to make a resin vibration-damping in a resin composition. The halogenated polyphenylene sulfide resin is produced by polycondensation reaction of a halogenated benzene and an alkali metal sulfide. The halogenated benzene is a dihalobenzene and/or a trihalobenzene. A ratio of a mass of the trihalobenzene to a mass of the halogenated benzene being 50 mass % or greater.
A method by which an intermediate product of an azole derivative can be produced at a lower cost than known production methods is provided. A method for producing a compound represented by General Formula (IV) includes converting a compound represented by General Formula (II) into the compound represented by General Formula (IV) using (a) dimethyl sulfide and/or dimethyl sulfoxide, and (b) a methyl-LG (an LG is a nucleophilically substitutable leaving group and is selected from the group consisting of a halogen group, an alkoxysulfonyloxy group, an aryloxysulfonyloxy group, an alkylsulfonyloxy group, a haloalkylsulfonyloxy group, and an arylsulfonyloxy group) in the presence of an inorganic base.
C07D 303/48 - Compounds containing oxirane rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals
C07C 67/42 - Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester by oxidation of secondary alcohols or ketones
In a dart for a downhole device according to the present invention, a ball is formed of a first degradable material having a first degradation rate, a mandrel is formed of a second degradable material having a second degradation rate lower than the first degradation rate, and a sleeve is formed of the second degradable material or a third degradable material having a third degradation rate lower than the second degradation rate.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 29/00 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
Provided is a frac plug or the like capable of being inserted into a borehole to seal the borehole with high strength, and then quickly disassembled and removed, thereby efficiently producing petroleum. A frac plug according to the present embodiment has a member made of a magnesium (Mg) alloy. The member has a multi-phase structure including a first phase, which is a matrix phase, and a second phase present in the first phase. In the multi-phase structure, the second phase is distributed in a substantially striped pattern in the first phase in a first cross section perpendicular to a second direction of the frac plug, and distributed in a substantially mesh-like pattern in the first phase in a second cross section perpendicular to a first direction of the frac plug.
C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
An object is to provide a composition containing a boron-containing carbon quantum dot, the composition being in a solid state at room temperature, having good emission efficiency, and further having high thermal stability at high temperatures.
The composition to achieve the above object contains: a boron-containing carbon quantum dot containing boron as a heteroatom; and a layered clay mineral, and the composition is solid at 25° C. and 1 atm.
METHOD FOR PRODUCING CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING ELECTRODE OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
The method of producing a carbonaceous material for a negative electrode of a nonaqueous electrolyte secondary battery includes (1) an addition condensation step of subjecting a raw material mixture composed of phenols containing 50 mass% or greater of phenol and an aldehyde to addition condensation in the presence of a sodium-based basic catalyst at less than 5 mass% relative to the raw material mixture to produce a resol type phenol resin; (2) a heat treating step of subjecting the resol type phenol resin to a main heat treatment at a temperature of from 950° C. to 1500° C. in a non-oxidizing gas atmosphere to produce a heat-treated carbon; and (3) a coating step of coating the heat-treated carbon with pyrolytic carbon to produce a carbonaceous material.
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
C08G 8/10 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with phenol
C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
A method for producing polyarylene sulfide that can have a high melt viscosity while suppressing ultra-fine powder generation. The method for producing polyarylene sulfide includes: (1) preparing a prepared mixture containing an organic polar solvent, a sulfur source, and a dihalo aromatic compound; (2) initiating a polymerization reaction by heating the prepared mixture to produce a prepolymer; (3) adding water as a phase separation agent to a reaction mixture in a reaction system to form a phase-separated state; and (4) continuing the polymerization reaction after phase separation. In the method, when a dihalo aromatic compound conversion ratio is 80 mass % or greater and 93 mass % or less and after the prepolymer reaches a weight average molecular weight of 10000 or greater in the first-stage polymerization step, an aromatic compound having 3 or more halogen atoms bonded to an aromatic ring is added to the reaction mixture.
An object is to provide a composition that contains a phosphorus-containing carbon quantum dot and can efficiently emit relatively long wavelength light. The composition to achieve the above object contains: a phosphorus-containing carbon quantum dot containing phosphorus as a heteroatom; and a smectite.
A method for producing PAS having an average particle size of 50 μm or greater and 550 μm or less is provided. The method can include: (1) a preparation step of preparing a prepared mixture containing an organic polar solvent, a sulfur source, and a dihalo aromatic compound; (2) a pre-stage polymerization step of initiating a polymerization reaction by heating the prepared mixture to produce a prepolymer; (3) a phase separation step of adding water as a phase separation agent to a reaction mixture in a reaction system to form a phase separation state; and (4) a post-stage polymerization step of continuing the polymerization reaction after the phase separation step, in which an organic sulfonic acid metal salt having a specific solubility in water is contained in the prepared mixture or the reaction mixture.
A method by which an intermediate product of an azole derivative can be produced at a lower cost and in a higher yield than those of known production methods is realized. A method of producing a compound of General Formula (III) includes: producing the compound of General Formula (III) by allowing a cyanide compound to act on a ketone derivative of General Formula (II); and washing the compound of General Formula (III) produced in the producing the compound of General Formula (III) with an alkaline aqueous solution.
C07D 303/48 - Compounds containing oxirane rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals
C07D 301/24 - Synthesis of the oxirane ring by splitting-off Hal—Y from compounds containing the radical Hal—C—C—OY
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY (Japan)
Inventor
Takatsuji, Kazuhisa
Fujieda, Ayako
Goto, Sumie
Machi, Yoshiki
Hirata, Junya
Shimada, Hironao
Hirata, Rieko
Sekine, Fujio
Yamashita, Yusuke
Sato, Takehiro
Akanuma, Mie
Fukumoto, Takumi
Abstract
An embodiment of the present invention is to provide a bioabsorbable medical material having adhesiveness to a biological tissue and improved degradability. A bioabsorbable medical material according to an embodiment of the present invention contains a crosslinked polymer material forming a specific shape, and a disintegration delaying material retained by the crosslinked polymer material. The crosslinked polymer material has degradability in water, the degradability being suppressed in the presence of an acid. The disintegration delaying material releases 0.5 mol%/day or greater of an acid until the seventh day upon contact with water at 37° C.
To provide a piezoelectric film that is less likely to be electrified and that can be safely handled. A multilayered film according to an embodiment of the present invention including: a piezoelectric film containing polyvinylidene fluoride; and a protective film including an antistatic layer, the piezoelectric film and the protective film being bonded.
H10N 30/00 - Piezoelectric or electrostrictive devices
H10N 30/03 - Assembling devices that include piezoelectric or electrostrictive parts
27.
Method for producing azole derivative, bromohydrin derivative and method for producing same, and method for producing 1-chloro-3-(4-chlorophenoxy)benzene
A novel method of producing 1-chloro-3-(4-chlorophenoxy)benzene can include performing hydrogenation reduction of 1-bromo-2-chloro-4-(4-chlorophenoxy)benzene or 1-bromo-4-chloro-2-(4-chlorophenoxy)benzene.
An antibacterial molded article that can further increase antibacterial performance. The present invention for achieving the above object is related to an antibacterial molded article including a resin molded article. The resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having a prominent protrusion ratio of 3% or greater and 25% or less. Alternatively, the resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having: a maximum height of profile defined by JIS B 0601 (2013) of 100 nm or greater and less than 500 nm, and a plurality of capture protrusions having a height of not less than half the maximum height of profile (Rz), in which an average distance between the plurality of capture protrusions is 1.5 μm or greater and 7 μm or less.
A method for producing a polyarylene sulfide comprising: initiating a polymerization reaction by heating a mixture containing an organic polar solvent, a sulfur source, water, a polyhaloaromatic compound, and an alkali metal hydroxide in the presence of at least one auxiliary agent selected from the group consisting of carboxylates and the like, to form a reaction mixture containing a prepolymer having a conversion rate of a polyhaloaromatic compound of 50 mol % or greater, then a phase separation agent addition step of adding a phase separation agent into the reaction mixture, then continuing the polymerization reaction, and then cooling the reaction mixture, in the cooling step, the coolant being added to the reaction mixture at a temperature that is at least 5° C. higher than a maximum thickening temperature and lower than 250° C., and a cooling rate at the maximum thickening temperature being 2.2° C./min or higher and 3.9° C./min or lower.
A method for producing a polyamide of the present invention, the method including polymerizing a raw material monomer having at least one alkylene group and at least one amide bond in the presence of a basic catalyst and a polymerization initiator. The number of carbons of the alkylene group is 1 or more and 3 or less. The polymerization initiator is a linear carboxylate having a structure derived from a secondary or tertiary alcohol.
An object is to provide a composition which has performance, such as emission wavelength, of carbon quantum dots in a desired range and in which carbon quantum dots and layered clay minerals are uniformly dispersed, and a method for producing the composition to obtain the composition simply and easily.
An object is to provide a composition which has performance, such as emission wavelength, of carbon quantum dots in a desired range and in which carbon quantum dots and layered clay minerals are uniformly dispersed, and a method for producing the composition to obtain the composition simply and easily.
The carbon quantum dot-containing composition achieving the object described above containing a carbon quantum dot obtained by reacting a solid organic compound having a reactive group in the presence of a layered clay mineral, and the layered clay mineral.
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y 40/00 - Manufacture or treatment of nanostructures
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
The present invention is to provide an antibacterial molded article that can increase options for the material and shape of the molded article, and a method for manufacturing the same. The object is achieved by an antibacterial molded article containing a plastic molded article, the plastic molded article having a rough region having an arithmetic average roughness Ra of a roughness curve in accordance with JIS B 0601 (2013) of 0.14 μm or greater and 0.72 μm or less provided on a surface with which bacteria can come into contact.
A61L 2/02 - Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
B24C 1/10 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
In order to provide a plant growth regulator with an excellent plant growth promoting effect, the plant growth regulator of the present invention includes a compound represented by Formula (I) or its tautomer, or an agrochemically acceptable salt thereof.
In order to provide a plant growth regulator with an excellent plant growth promoting effect, the plant growth regulator of the present invention includes a compound represented by Formula (I) or its tautomer, or an agrochemically acceptable salt thereof.
In order to provide a plant growth regulator with an excellent plant growth promoting effect, the plant growth regulator of the present invention includes a compound represented by Formula (I) or its tautomer, or an agrochemically acceptable salt thereof.
where R1 and R2 each independently represent a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms, and R3 to R5 each independently represent an alkyl group having from 1 to 4 carbon atoms.
Provided is an agricultural or horticultural fungicide that has low toxicity to humans and animals, that is excellent in handling safety, and that has an excellent controlling effect against a wide range of plant diseases and a high antimicrobial action against plant disease fungi.
Provided is an agricultural or horticultural fungicide that has low toxicity to humans and animals, that is excellent in handling safety, and that has an excellent controlling effect against a wide range of plant diseases and a high antimicrobial action against plant disease fungi.
The agricultural or horticultural fungicide of the present invention includes, as an active ingredient, an azole derivative represented by the following general formula (I) and other active ingredients.
Provided is an agricultural or horticultural fungicide that has low toxicity to humans and animals, that is excellent in handling safety, and that has an excellent controlling effect against a wide range of plant diseases and a high antimicrobial action against plant disease fungi.
The agricultural or horticultural fungicide of the present invention includes, as an active ingredient, an azole derivative represented by the following general formula (I) and other active ingredients.
A method of producing a PAS according to an embodiment of the present invention includes: a polymerizing step; a water removal step; a hydrogen sulfide recovering step in which hydrogen sulfide contained in a gas component produced in the water removal step is absorbed and recovered by an aqueous solution of an alkali metal hydroxide; and a condensation step in which the gas component produced in the water removal step is condensed. The hydrogen sulfide recovering step is performed before the condensation step.
The vinylidene-fluoride-based polymer composition according to the present invention comprises a vinylidene-fluoride-based polymer and a specific surfactant and contains no fluorinated surfactant, wherein the specific surfactant is contained in an amount of 10 ppm or larger but less than 100 ppm in terms of mass ppm of the solid components of the composition and has an HLB value of 10 or greater. The method for producing a vinylidene-fluoride-based polymer according to the present invention comprises emulsion-polymerizing specific monomers in an aqueous medium in the presence of a specific emulsifier and an initiator without using any fluorinated surfactant, the use amount of the emulsifier being 8.5 ppm or larger but less than 100 ppm in terms of mass ppm of the monomers.
A method for continuously producing an aromatic polyether according to the present invention includes simultaneously implementing: a supply step of supplying a polymerization solvent, an alkali metal compound, and a raw material; a polymerizing step; and a movement step. The alkali metal compound is supplied as an aqueous mixture. According to the present invention, clogging of piping in the continuous production apparatus can be suppressed, and the aromatic polyether can be stably obtained.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B01J 19/00 - Chemical, physical or physico-chemical processes in general; Their relevant apparatus
39.
RESIN COMPOSITION, METHOD FOR PRODUCING RESIN COMPOSITION, MOLDED ARTICLE, AND METHOD FOR PRODUCING MOLDED ARTICLE
Provided is a resin composition that can suppress yellowing even when used in a transparent molded article having a large thickness. The resin composition according to the present invention contains a vinylidene fluoride polymer as a main component, and further contains an alkyl quaternary ammonium sulfate. A percentage of irregular sequences in the vinylidene fluoride polymer is 4% or greater.
A polyvinylidene fluoride resin composition of the present invention contains an alkyl quaternary ammonium sulfate, an alkali metal concentration in the polyvinylidene fluoride resin composition is 60 ppm or less, and a hydrogen fluoride concentration in the polyvinylidene fluoride is 5 ppm or less. The polyvinylidene fluoride resin composition of the present invention can express sufficient transparency even in a thick molded article.
A binder composition includes a dispersion medium and a group of binder particles. The group of binder particles is dispersed in the dispersion medium. The group of binder particles include a polymer material. The polymer material includes a constitutional unit originated from vinylidene difluoride. The group of binder particles has a number-based particle size distribution. The particle size distribution satisfies the following conditions: “0.19≤X≤0.26”, “0.69≤Y≤0.76”, and “0≤Z≤0.05”. Here, “X” represents a frequency of particles each having a particle size of less than or equal to 40 μm. “Y” indicates a frequency of particles each having a particle size of more than 40 μm and less than or equal to 110 μm. “Z” indicates a frequency of particles each having a particle size of more than 110 μm and less than or equal to 250 μm.
To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less.
A plug which does not cause an adverse effect such as failure of a member constituting the plug when a wellbore is plugged. A downhole plug (10) includes a mandrel (1) having a hollow structure, an annular sealing member (2) attached to an outer circumferential surface of the mandrel (1) and being deformable by exerted pressure, and an annular socket (3) attached, adjacent to the annular sealing member (2), onto the outer circumferential surface of the mandrel (1), downstream of where a pressure is exerted on the sealing member (2). The annular socket (3) is configured to include a socket-inner portion (31) which comes into contact with the outer circumferential surface of the mandrel (1), and a socket-outer portion (32) in an annular shape having an inner diameter equivalent to or larger than that of the socket-inner portion (31) and movably attached to the socket-inner portion (31). The socket-outer portion (32) includes a face facing the sealing member (2).
Provided is a method for producing a cyclic polysilane compound simply and easily in a higher yield. The method for producing a cyclic polysilane compound according to an embodiment of the present invention comprising a reaction step of adding a silane monomer compound represented by Formula (I) below into a liquid mixture containing metallic sodium and a lithium salt and allowing them to react:
1 is an integer that is greater than or equal to 1.
To provide a downhole tool that can maintain a high degradation rate even in high-temperature environments and a method for well drilling using the downhole tool. A downhole tool including: a component containing a reactive metal; and a component containing a degradable resin composition promoting degradation of the reactive metal, the degradable resin composition containing a degradable resin producing an acid by degradation, wherein a molar ratio of a maximum amount of the acid which the degradable resin composition is capable of producing to a content of the reactive metal is 1.0 or higher.
Provided is a battery negative electrode material exhibiting both a merit of high specific capacity obtained by using Si, and a merit of high cycle durability obtained by using a non-graphitizable carbon material. Specifically, provided is a negative electrode material (1) of a battery that includes silicon material areas (10) made of a silicon material, and a carbon material area (20) made of a carbon material. The carbon material area (20) is formed in a surrounding area of the silicon material area (10), separated by a cavity (30) at least at a portion. In addition, an (002) average interlayer spacing d002 of the carbon material area (20) determined by powder X-ray diffraction is from 0.365 nm to 0.390 nm. The battery negative electrode material 1 is manufactured through: a step (a) of melting and mixing or dissolving and mixing with an organic material composition, a coated silicon material that has been coated with silicon oxide; a step (b) of removing the silicon oxide; and a step (c) of carbonizing an organic material constituting the organic material composition.
Provided is a heat-shrinkable multilayer film having high strength and excellent followability to its contents.
Provided is a heat-shrinkable multilayer film having high strength and excellent followability to its contents.
The heat-shrinkable multilayer film according to the present invention is composed of at least three layers of a surface layer (a) including a thermoplastic resin; an intermediate layer (b) including a polyamide-based resin; and a surface layer (c) including a sealable resin. (A) The load per unit width at 10% elongation is 0.70 N/mm or less in both a longitudinal direction (MD) and a transverse direction (TD) in a tensile test at 90° C. (B) The puncture strength per unit thickness is 0.200 N/μm or greater.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
There are provided a method capable of producing a large amount of a carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery from a carbon precursor impregnated with an alkali metal element or an alkali metal compound, and an apparatus for performing such production. The method for producing a carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery includes a heat treatment step of feeding a carbon precursor containing an elemental alkali metal and/or an alkali metal compound, heating the carbon precursor in a temperature range from 1000° C. to 1500° C. in a non-oxidizing gas atmosphere to produce a carbonaceous material, and discharging the carbonaceous material; and an exhaust gas treatment step of contacting a non-oxidizing exhaust gas containing a gas and a flying carbonaceous matter evolved in the heat treatment step with water or an aqueous solution to treat the exhaust gas.
a compound having an oxygen atom-containing functional group; wherein a ratio of oxygen atom in a surface of the vinylidene fluoride copolymer particle is higher than a ratio of oxygen atom in the vinylidene fluoride copolymer particle other than the surface thereof.
A plug excellent in pressure resistance is provided. A downhole plug (20) includes a mandrel (1), a center element (2), at least one lip (3), and a pressure transmission means. When the center element (2) is deformed by applying a pressure of 50 MPa to the downhole plug (20) in the axial direction, a ratio (b/a) of an axial length (b) of a part where the mandrel (1) and the center element (2) are in contact with each other, to a maximum axial length (a) of the center element (2) in a cross section along the axial direction is less than 0.5.
b) includes: a hollow portion (64) through which a fluid flowing along an axial direction of the mandrel (1) can pass; or a groove in at least a portion of, a surface serving as an outer surface of the downhole plug (10), or a surface in contact with the mandrel (1).
As a novel vinylidene fluoride polymer and its use, provided are a binder composition, an electrode mixture, an electrode, and a non-aqueous electrolyte secondary battery including the vinylidene fluoride containing the vinylidene fluoride polymer. The vinylidene fluoride polymer includes a first structural unit derived from vinylidene fluoride and a second structural unit derived from a monomer other than vinylidene fluoride. The monomer to be the second structural unit is a primary amine, a secondary amine, or a tertiary amine having at least one of a hydroxyl group and a carboxyl group, and the content of the second structural unit is from 0.05 to 20 mol % when the total of structural units derived from all the monomers constituting the vinylidene fluoride polymer is 100 mol %.
The present invention is to provide a method of producing an alkene that can further enhance the yield of an alkene, a reaction product, the method including bringing a gaseous halogenated alkane into contact with an alkaline aqueous solution in the presence of a phase-transfer catalyst. The objective above is achieved by a method of producing an alkene comprising bringing in the presence of a phase-transfer catalyst a liquid phase containing an alkaline aqueous solution and a water-insoluble solvent into contact with a gas phase containing a halogenated alkane that is soluble in the water-insoluble solvent.
The object of the present invention is to provide a method for producing glycolide, with which a production rate of glycolide can be further enhanced.
The method for producing glycolide that achieves the object described above includes: an oligomer preparation step of heating an aqueous glycolic acid solution and subjecting glycolic acid contained in the aqueous glycolic acid solution to dehydrating polycondensation, to obtain a glycolic acid oligomer; and a depolymerization step of depolymerizing the glycolic acid oligomer in the presence of ferrous ions to obtain glycolide.
A61M 1/36 - Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation
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
A61M 1/34 - Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration, diafiltration
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
B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
The object of the present invention is to provide a glycolide production method capable of further increasing the production rate of glycolide. The glycolide production method according to the present invention includes adding metal iron to an aqueous glycolic acid solution, subjecting glycolic acid contained in the aqueous glycolic acid solution to which the metal iron is added, to dehydrating polycondensation to obtain a glycolic acid oligomer, and heating and depolymerizing the glycolic acid oligomer to obtain glycolide.
Provided is a method for producing a cyclic polysilane compound from a silane monomer compound in one-pot approach. The method for producing a cyclic polysilane compound according to an embodiment of the present invention includes a first step of adding and reacting a silane monomer compound in a liquid mixture of a sodium dispersion and a solvent; and a second step of adding an aromatic hydrocarbon to a reaction solution of the first step and heating and refluxing.
C07F 7/21 - Cyclic compounds having at least one ring containing silicon but no carbon in the ring
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
62.
Binder composition, mixture for producing electrode for non-aqueous electrolyte secondary battery, electrode for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery
The present invention is to provide a binder composition of a non-aqueous electrolyte secondary battery, which contains a vinylidene fluoride polymer and is capable of further enhancing adhesive strength of the electrode mixture layer to a surface of a current collector. The above objective can be achieved by a binder composition of a non-aqueous electrolyte secondary battery, the binder composition comprising a vinylidene fluoride copolymer for a binder of a non-aqueous electrolyte secondary battery, the vinylidene fluoride copolymer containing: a first constituent unit derived from vinylidene fluoride, and a second constituent unit containing an isocyanate group or having a structure that produces an isocyanate group when heated at 200° C. for 1 hour. This binder composition can be used in a mixture for producing an electrode for a non-aqueous electrolyte secondary battery, an electrode for a non-aqueous electrolyte secondary battery, and a non-aqueous electrolyte secondary battery.
C08F 259/08 - Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group on to polymers containing fluorine
H01M 4/50 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/02 - Electrodes composed of, or comprising, active material
Provided is a method that can stably produce polyaryletherketone that has a high degree of polymerization and can be easily recovered. The method for producing polyaryletherketone includes: a polycondensation step of carrying out desalting polycondensation in a reaction solvent; and a cooling step of cooling a reaction mixture after desalting polycondensation is completed. When the method is implemented, the polycondensation step is carried out in a hydrophilic solvent under pressurized conditions, and the polymerization temperature in the polycondensation step is at or above the boiling point of the hydrophilic solvent at ambient pressure. In addition, the polymer content in terms of monomers at the time of cooling in the cooling step is from 1 part by mass to 50 parts by mass, per 100 parts by mass of the hydrophilic solvent in the reaction mixture.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08G 65/46 - Post-polymerisation treatment, e.g. recovery, purification, drying
To provide a continuous production apparatus and a continuous production method for an aromatic polymer which enable resource conservation, energy conservation, and equipment costs reduction. A continuous production method for an aromatic polymer having an ether bond or an imide bond, the method including: (a) supplying a polymerization solvent and a reaction raw material to a continuous production apparatus including a plurality of reaction vessels; (b) performing a polycondensation reaction in the polymerization solvent in at least one of the reaction vessels to form a reaction mixture; and (c) successively moving the reaction mixture to each of the reaction vessel, the steps (a), (b), and (c) being performed in parallel; wherein an ether bond or an imide bond is formed by the polycondensation reaction; respective gas phase parts of the plurality of reaction vessels communicate with one another; and a pressure of each of the gas phase parts is uniform.
B01J 19/00 - Chemical, physical or physico-chemical processes in general; Their relevant apparatus
C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
65.
Continuous polymerization apparatus and continuous production method for polymer
c) successively move through each reaction vessel; in the plurality of reaction vessels, gas phase parts formed above the reaction mixture communicate with one another; and the continuous polymerization apparatus includes a washing part (5), the washing part configured to separate a solid included in the reaction mixture by sedimentation and to perform countercurrent washing.
B01J 19/24 - Stationary reactors without moving elements inside
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
C08G 75/0259 - Preparatory processes using metal hydrogensulfides
Provided are a continuous production method and a continuous production apparatus utilizing the solution polycondensation for aromatic cyclic oligomers, which achieve a good space-time yield and are inexpensive and simple. The continuous production method includes: (a) supplying a polymerization solvent and a reaction raw material to a continuous production apparatus; (b) performing a polymerization reaction in the reaction vessels to form a reaction mixture; (c) removing water in gas phase parts of the reaction vessels from the reaction vessels; and (d) successively moving the reaction mixture to each of the reaction vessels; the steps (a), (b), (c), and (d) being performed in parallel; wherein an amount of the polymerization solvent in the reaction vessel positioned furthest downstream in a movement direction of the reaction mixture is not less than 1 L and not greater than 50 L per 1 mol of arylene units in the reaction raw material.
In a method for producing a cyclic ester according to an embodiment of the present invention, a mixture (I) containing an aliphatic polyester, a specific polyalkylene glycol diether, and a sulfonic acid compound as a thermal stabilizer is prepared and heated in predetermined conditions to obtain a mixture (II) in a state of solution. Furthermore, heating of the mixture (II) is continued to distill, together with the polyalkylene glycol diether, a cyclic ester formed by the depolymerization reaction, and thus a distillate (III) is obtained. The cyclic ester is recovered from the distillate (III). At this time, a specific solubilizing agent is added to at least one of the mixture (I) or (II). In this production method, the sulfonic acid compound as the thermal stabilizer is contained in the mixtures (I) and (II) and the distillate (III).
C08G 85/00 - General processes for preparing compounds provided for in this subclass
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
C07D 319/12 - 1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings
68.
Plug, retaining member, and method for well completion using plug
A plug which does not cause an adverse effect such as failure of a member constituting the plug when a wellbore is plugged. A downhole plug (10) includes a mandrel (1) having a hollow structure, an annular sealing member (2) attached to an outer circumferential surface of the mandrel (1) and being deformable by exerted pressure, and an annular socket (3) attached, adjacent to the annular sealing member (2), onto the outer circumferential surface of the mandrel (1), downstream of where a pressure is exerted on the sealing member (2). The annular socket (3) is configured to include a socket-inner portion (31) which comes into contact with the outer circumferential surface of the mandrel (1), and a socket-outer portion (32) in an annular shape having an inner diameter equivalent to or larger than that of the socket-inner portion (31) and movably attached to the socket-inner portion (31). The socket-outer portion (32) includes a face facing the sealing member (2).
a step of supplying an organic polar solvent, a sulfur source, and a dihalo aromatic compound as reaction raw materials to at least one of a plurality of reaction vessels mutually communicated via a gas phase; a step of removing at least a portion of the water present in the reaction vessels; and a step of performing a polymerization reaction. These steps are carried out in parallel, and the reaction mixture is sequentially moved between reaction vessels. At that time, the internal temperatures of the reaction vessels are all not less than 150° C.
C08G 75/0209 - Polyarylenethioethers derived from monomers containing one aromatic ring
C08G 75/0259 - Preparatory processes using metal hydrogensulfides
70.
Azole derivative, intermediate compound, method for producing azole derivative, agricultural or horticultural chemical agent, and protective agent for industrial material
It is provided a plant disease controlling agent having low toxicity to human and animals and excellent handling safety, and showing excellent controlling effects on various plant diseases and high antibiotic action to plant disease germs.
A compound represented by the following the general formula (I), or an N-oxide or agrochemically acceptable salt thereof.
C12N 15/00 - Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
C12N 9/06 - Oxidoreductases (1.), e.g. luciferase acting on nitrogen containing compounds as donors (1.4, 1.5, 1.7)
C12N 15/52 - Genes encoding for enzymes or proenzymes
C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
72.
Binder composition, electrode mixture, electrode, non-aqueous electrolyte secondary battery, and production method of binder composition
A binder composition that exhibits sufficient adhesion and that achieves the excellent dispersibility of a conductive additive is provided. The binder composition according to an embodiment of the present invention is a binder composition including a vinylidene fluoride copolymer composition containing vinylidene fluoride and a monomer having an acidic functional group; and a ratio (Mn2/Mn1) of a number average molecular weight of the vinylidene fluoride copolymer composition after being adsorbed onto alumina (Mn2) to a number average molecular weight of the vinylidene fluoride copolymer composition before being adsorbed onto alumina (Mn1) being less than 1.
d); wherein a reaction mixture is formed by subjecting monomers to a polymerization reaction in a solvent in at least one of the reaction vessels; the reaction vessels communicate with one another via a gas phase part (4); the reaction vessels are sequentially connected; the reaction mixture successively moves to each of the reaction vessels; and the housing chamber includes a baffle (9) configured to narrow the cross-sectional area of the gas phase part at the boundary between at least one pair of adjacent reaction vessels or in the vicinity of the boundary.
B01J 19/00 - Chemical, physical or physico-chemical processes in general; Their relevant apparatus
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B01J 19/18 - Stationary reactors having moving elements inside
B01J 19/24 - Stationary reactors without moving elements inside
74.
Binder composition, electrode mixture, electrode, and non-aqueous electrolyte secondary battery
Provided is a binder composition that exhibits sufficient adhesion and that achieves the excellent dispersibility of a conductive auxiliary agent. The binder composition according to an embodiment of the present invention is a binder composition containing a vinylidene fluoride copolymer composition containing vinylidene fluoride and an acrylic monomer; the acrylic monomer being at least one type selected from acrylic acid and methacrylic acid; and a ratio (Mn2/Mn1) of a number average molecular weight of the vinylidene fluoride copolymer composition after being adsorbed onto alumina (Mn2) to a number average molecular weight of the vinylidene fluoride copolymer composition before being adsorbed onto alumina (Mn1) being less than 2.
The present invention is to provide a spherical polyamide fine particle having smooth sliding properties and causing a low degree of environmental pollution. The polyamide fine particle according to the present invention includes: a polyamide including a repetition of a structural unit having at least one alkylene group and at least one amide bond, each of the at least one alkylene group having from 1 to 5 carbon atoms, wherein the polyamide fine particle has a sphericity of 80 or greater.
C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Akita, Hironaga
Nakamichi, Yuusuke
Watanabe, Masahiro
Matsushika, Akinori
Morita, Tomotake
Abstract
An enzyme has an activity of reversible dehydrogenation of D-amino acid and is a hexamer of polypeptides having an amino acid sequence that has 80% or more identity with the amino acid sequence of SEQ ID NO: 2. The amino acid sequence of the polypeptide can include one or more amino acid substitutions for one or more amino acid residues of SEQ ID NO: 2.
A rubber composition for downhole tools having excellent degradability and storability is provided. The rubber composition for downhole tools includes degradable rubber, a degradation accelerator, and a degradation inhibitor. The degradation accelerator is at least one type of the compound represented by Formula (I) or Formula (II) below. The degradation inhibitor is at least one type selected from the group consisting of carbodiimide compounds, oxazoline compounds, oxazine compounds, and epoxy compounds. The content of the degradation accelerator is from 0.1 to 20 parts by mass relative to 100 parts by mass of the degradable rubber. The content of the degradation inhibitor is from 0.1 to 3 parts by mass relative to 100 parts by mass of the degradable rubber.
C08J 11/28 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
E21B 29/02 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground by explosives or by thermal or chemical means
Provided is a heat-shrinkable multilayer film including: an outer surface layer including a thermoplastic resin; an intermediate layer including a polyamide resin; and an inner surface layer including a sealable resin; the total thickness of the heat-shrinkable multilayer film being from 95 to 160 μm; the thickness of the intermediate layer including the polyamide resin being from 17 to 47 μm; the thickness of the inner surface layer being 55 μm or greater; and the ratio of the thickness of the intermediate layer including the polyamide resin to the total thickness of the heat-shrinkable multilayer film being from 18 to 29%. The heat-shrinkable multilayer film of the present invention has high strength and excellent flexibility. Therefore, the heat-shrinkable multilayer film of the present invention is easily stretched and formed, and can be suitably used as a variety of packaging materials including a food packaging material.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
A method for producing polyarylene sulfide of the present invention includes the steps of: supplying reaction raw materials to at least one of a plurality of reaction vessels mutually communicated through a gas phase; carrying out a polymerization reaction; and removing at least some of the water present in the reaction vessels. Each of the steps is carried out in parallel, and a reaction mixture is transferred sequentially between the reaction vessels. At that time, the amount of heat that is removed in the polymerization reaction is less than the amount of reaction heat of the polymerization reaction.
A polymerization device that includes: a reaction vessel that houses a polymerization solution and in which a polymerization reaction is performed; a stirring blade that stirs the polymerization solution housed in the reaction vessel; a plurality of heat transfer pipes that transfer heat to the polymerization solution in order to start the polymerization reaction and cause the polymerization reaction to proceed, and that remove, from the polymerization solution, heat generated by the polymerization reaction; and a baffle arranged between a vessel wall of the reaction vessel and the heat transfer pipes.
A heat-shrinkable multilayer film according to the present invention is obtained by laminating an inner surface layer that contacts contents, an adhesive layer, and an intermediate layer that is adjacent to the adhesive layer, in this order from an inner side to an outer side. The inner surface layer contains an ethylene-vinyl acetate copolymer, the adhesive layer contains an acid-modified ethylene-based copolymer, and the intermediate layer contains a polyamide-based resin.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
The production method of the present invention includes a step of supplying an organic polar solvent, a sulfur source, and a dihalo aromatic compound as reaction raw materials to at least one of a plurality of reaction vessels mutually communicated via a gas phase; a step of removing at least a portion of the water present in the reaction vessels; and a step of performing a polymerization reaction. These steps are carried out in parallel, and the reaction mixture is sequentially moved between reaction vessels. At that time, the internal temperatures of the reaction vessels are all not less than 150° C.
The production method of the present invention includes: a supplying step of supplying reaction raw materials to at least one of a plurality of reaction vessels mutually communicated through a gas phase; a polymerizing step of carrying out a polymerization reaction; and a step of removing at least some of the water present in the reaction vessels. Each of the steps is carried out in parallel, and a reaction mixture is transferred sequentially between the reaction vessels. The total amount of water contained in the reaction raw materials in at least one of the reaction vessels to which the reaction raw materials are supplied is 3 moles or more per mole of the sulfur source, and the internal temperature of at least one of the reaction vessels to which the reaction raw materials are supplied is from 180° C. to 300° C.
Provided is a molded article comprising an aliphatic polyester. The aliphatic polyester is at least one selected from the group consisting of polyglycolic acid and a copolymer of a glycolic acid monomer and a monomer other than the glycolic acid monomer. The molded article has a uniaxial compressive strength at a temperature of 23° C. of greater than 250 MPa and not greater than 350 MPa.
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
B29K 67/00 - Use of polyesters as moulding material
C08K 3/013 - Fillers, pigments or reinforcing additives
H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
a second recovery step of bringing the first recovered gas phase into contact with an alkali metal hydroxide aqueous solution to obtain a second recovered liquid phase containing water, a sulfur source, and an alkali metal hydroxide.
Provided is a method for producing a high purity α-hydroxycarboxylic acid dimeric cyclic ester while heavy-component formation from an α-hydroxycarboxylic acid oligomer is suppressed. An α-hydroxycarboxylic acid dimeric cyclic ester is obtained by performing a depolymerization reaction in the coexistence of an inorganic acid or an inorganic acid salt or a mixture thereof; and an organophosphorus compound.
C07D 319/12 - 1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings
C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
H01B 3/44 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
90.
Electrode mixture, method for producing electrode mixture, electrode structure, method for producing electrode structure, and secondary battery
To provide an electrode mixture that suppresses gelling of an electrode mixture slurry and maintains a high binding capacity between an electrode active material and a current collector even after an extended period of time has elapsed since an electrode mixture slurry was produced. The electrode mixture includes: a binder composition—containing a first copolymer of vinylidene fluoride and a polar group-containing compound; and a second copolymer of vinylidene fluoride and chlorotrifluoroethylene—; and an electrode active material of lithium oxide having a pH of water when extracted with water of not less than 10.5.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/02 - Electrodes composed of, or comprising, active material
91.
Composition, composition for downhole tools, degradable rubber member for downhole, downhole tool, and method for well drilling
A composition for downhill tool, a degradable rubber member for downhole tool, a downhole tool, and a well drilling method are provided which contribute to cost reduction and process shortening and can contribute to improvement of production efficiency. The composition comprises a degradable rubber and a decomposition accelerator and comprises 0.1 to 20 parts by mass of at least one type of compound represented by the following general formula (I) per 100 parts by mass of the degradable rubber, the composition for a down hole tool includes the same, the degradable rubber member for down hole tool includes the same, and a well drilling method using the same.
(In formula (I), R is an alkyl group having from 2 to 6 carbons).
Provided are fibers that have excellent mechanical properties such as strength and that do not result in the filament breakage during a manufacturing process. The fibers are vinylidene fluoride resin fibers including a plurality of vinylidene fluoride resin filaments, and having a degree of crystal orientation of 80% or more as determined on the basis of X-ray diffraction from the azimuth angle intensity distribution curve of 2θ=20.8±1°, and a crystal size of 12 nm or less.
D01F 6/12 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
To provide a method of manufacturing polyarylene sulfide (PAS) while efficiently recovering an organic amide solvent at a low energy cost, without using an organic solvent, from washing wastewater produced by washing a raw material mixture containing PAS and an organic amide solvent using a solvent containing water; a method of manufacturing PAS by reducing the amount of water supplied when washing the raw material mixture using a solvent containing water; and PAS manufactured by these methods. A method according to the present invention includes: a step of mixing a solvent containing water and a raw material mixture that contains PAS and an organic amide solvent, and then washing the PAS; a step of obtaining a separated liquid by solid-liquid separation; and a step of separating the separated liquid into distilled vapor having a smaller amount of the organic amide solvent and a recovered liquid having a larger amount of the organic amide solvent by heating, where the heating is performed utilizing an increase in temperature based on compressing the distilled vapor and/or compressing a heat medium heat-exchanged with the distilled vapor.
C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
94.
Device for continuously producing poly(arylene sulfide) and method for continuously producing poly(arylene sulfide)
Provided are a device for continuously producing poly(arylene sulfide) (hereinafter, referred to as PAS) and a method for continuous PAS production with which resource savings, energy savings, and a reduction in equipment cost are rendered possible. The device for continuous PAS production according to the present invention includes a housing chamber for housing a plurality of reaction cells; wherein the housing chamber is supplied with at least an organic amide solvent, a sulfur source, and a dihalo aromatic compound. In the reaction cells, the sulfur source is polymerized with the dihalo aromatic compound in the organic amide solvent to form a reaction mixture. The reaction cells communicate with each other through a gas phase within the housing chamber. The reaction cells are sequentially connected, and the reaction mixture sequentially moves to each reaction cell.
B01J 19/24 - Stationary reactors without moving elements inside
C08G 75/0213 - Polyarylenethioethers derived from monomers containing one aromatic ring containing elements other than carbon, hydrogen or sulfur
C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used
95.
Method for producing granular polyarylene sulfide, method for increasing average particle size of granular polyarylene sulfide, method for enhancing particle strength of granular polyarylene sulfide, and granular polyarylene sulfide
The present invention provides a method for producing granular polyarylene sulfide (PAS) with increased average particle size and enhanced particle strength, a method for increasing the average particle size of granular PAS, a method for enhancing the particle strength of granular PAS, and granular PAS. The method for producing PAS according to the present invention includes: step 1: a preparation step of preparing a mixture containing an organic amide solvent, a sulfur source, water, a dihalo aromatic compound, and an alkali metal hydroxide; step 2: a pre-stage polymerization step of initiating a polymerization reaction by heating the mixture to produce a prepolymer having a dihalo aromatic compound conversion ratio of not less than 50% in the presence of less than an equimolar amount of an alkali metal hydroxide per 1 mol of the sulfur source; step 3: a post-stage polymerization step of continuing the polymerization reaction in the presence of not less than an equimolar amount of an alkali metal hydroxide per 1 mol of the sulfur source to obtain a reaction product mixture; and step 4: a cooling step of cooling the reaction product mixture after the post-stage polymerization step; wherein step 4 is performed in the presence of at least one type of auxiliary agent such as a carboxylate.
C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
A composition for downhill tool, a degradable rubber member for a downhole tool, a downhole tool, and a method for well drilling are provided which contribute to cost reduction and process shortening and can contribute to improvement of production efficiency. A degradable rubber and a degradation accelerator comprising at least one type of compounds represented by a general formula (I) below at the ratio from 0.1 to 20 parts by mass to 100 parts by mass of the degradable rubber, containing the composition for a down hole tool, i.e. degradable rubber member for a down hole tool, and a method for well drilling using them.
2 are each individually alkyl groups having from 1 to 5 carbons or phenyl groups).
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
E21B 29/02 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground by explosives or by thermal or chemical means
98.
Binder composition, binder dispersion liquid, electrode mixture, electrode, non-aqueous electrolyte secondary battery, and method for producing binder composition
The present invention provides a binder composition which suppresses a swelling ratio in an electrolyte solution while having sufficient peel strength. The binder composition according to the present invention contains a copolymer including monomer units derived from vinylidene fluoride, a fluorine-containing alkyl vinyl compound, and a crosslinkable monomer; the content of the monomer unit derived from the fluorine-containing alkyl vinyl compound in the copolymer being not less than 2 mass % and less than 10 mass %; and the content of the monomer unit derived from the crosslinkable monomer being less than 5 mass %.
A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin having a weight average molecular weight of at least 70,000, having an effective thickness which is ½ or more of a critical thickness of surface decomposition, and exhibiting a thickness reduction rate in water which is constant with respect to time. As a result, it has become possible to more accurately design the strength and time up to the collapse of the downhole tool member which forms the whole or a part of a downhole tool for developing or repairing downholes for recovery of hydrocarbon resources, such as oil and gas.
E21B 23/14 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
E21B 17/04 - Couplings; Joints between rod and bit, or between rod and rod
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
E21B 23/00 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
patents
