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Kuraray Co Ltd
Kuraray Co Ltd Kurashiki shi Japan

Kuraray Co Ltd patents


Recent patent applications related to Kuraray Co Ltd. Kuraray Co Ltd is listed as an Agent/Assignee. Note: Kuraray Co Ltd may have other listings under different names/spellings. We're not affiliated with Kuraray Co Ltd, we're just tracking patents.

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Multilayer structure and packaging material including same

The present invention provides a novel multilayer structure having good gas barrier properties and good water vapor barrier properties and further having high retort resistance and a packaging material including the multilayer structure. The present invention relates to a multilayer structure including a base (X) and a layer (Y) stacked... Kuraray Co Ltd

Process for producing (meth)acrylic resin composition

A method for producing a (meth)acrylic resin composition, the method comprising continuously feeding a polymerizable monomer component comprising 50 to 100% by mass of methyl methacrylate, 0 to 20% by mass of an acrylic acid alkyl ester and 0 to 30% by mass of an additional monomer, a chain transfer... Kuraray Co Ltd

Polyamide resin composition and molded article thereof

Provided are a polyamide resin composition prepared by blending a polyamide resin (A) and a polyalcohol (B), wherein the proportion of the number of the amide groups to the number of the carbon atoms in the polyamide resin (A) is 0.080 to 0.140 and the blending amount of the polyalcohol... Kuraray Co Ltd

Composition for removing sulfur-containing compounds

Provided is a composition capable of safely and efficiently removing a sulfur-containing compound, especially hydrogen sulfide, an —SH group-containing compound or a mixture thereof contained in a hydrocarbon, and not causing metal corrosion in devices. The composition is for removing a sulfur-containing compound in a hydrocarbon, wherein the sulfur-containing compound... Kuraray Co Ltd

Process for producing aromatic vinyl/conjugated diene copolymer and product of hydrogenation thereof

Step C: a step of discharging the copolymer solution heated in the Step B from a specified nozzle at a linear velocity of 1 to 100 m/sec to separate the solvent in an inert gas stream at 0 to 200° C.... Kuraray Co Ltd

Multilayer film

Provided are a multilayer film, a method for producing the multilayer film, and a method for producing a molded body. The multilayer film has excellent three-dimensional overlaying formability and adhesiveness after being formed; can easily be used when being bonded to an adherend; maintains adhesive strength. Specifically, the multilayer film... Kuraray Co Ltd

Multilayered tube for transporting liquid medicine and polyamide resin composition

There is provided a multilayered tube for transporting liquid chemicals containing an outermost layer and an innermost layer, the innermost layer containing a polyamide (A), an impact modifier (B), and a carbon nanotube (C), wherein the number of projections each having a height of 5 μm or more and a... Kuraray Co Ltd

Method for producing aldehyde compound, and acetal compound

wherein R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms, or are mutually coupled to represent an alkylene group having 2 to 6 carbon atoms.... Kuraray Co Ltd

Aqueous emulsion and adhesive in which same is used

(The definitions of the symbols are omitted.)... Kuraray Co Ltd

Crosslinkable resin composition, crosslinked product, and producing thereof, and multilayered structure

The resin composition contains an ethylene-vinyl alcohol copolymer (A) and a crosslinking agent (B) with the crosslinking agent (B) in an amount of 0.6 to 15 parts by mass relative to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A), the crosslinking agent (B) being a powder obtained by... Kuraray Co Ltd

Polymethallyl alcohol resin composition and molding containing same

Provided is a resin composition containing polymethallyl alcohol (A) having a repeating structural unit represented by the following formula (1) in an amount of greater than or equal to 30 mol %, and a metal ion (B), a content of the metal ion (B) being greater than or equal to... Kuraray Co Ltd

Self-adhering nonwoven fabric

Provided are a nonwoven fabric, wherein in a broken end part formed by a tensile test in accordance with JIS L 1913 of stretching in one direction to lead breakage, letting an innermost point in the one direction be Pin and an outermost point be Pout, distance D along the... Kuraray Co Ltd

Interlayer film for laminated glass and laminated glass

The invention relates to an interlayer film for laminated glass, including at least one layer A containing a thermoplastic elastomer, wherein a laminated glass in which the interlayer film for laminated glass is disposed between two clear glasses with the total thickness of the clear glasses being 4 mm or... Kuraray Co Ltd

Polymethallyl alcohol resin composition and molding containing same

Provided is a resin composition containing polymethallyl alcohol (A) having a repeating structural unit represented by the following formula (1) in an amount of greater than or equal to 30 mol %, and a component (B) that is at least one of an acid component having a pKa of 3.5... Kuraray Co Ltd

Polymethallyl alcohol copolymer and molding containing same, and producing polymethallyl alcohol copolymer

Provided is a polymethallyl alcohol copolymer having a structural unit (A) represented by the following formula (A) and a structural unit (B) represented by the following formula (B), a molar ratio (A)/(B) of the structural unit (A) to the structural unit (B) being greater than or equal to 0.5; a... Kuraray Co Ltd

Optical fiber rod, optical fiber, image fiber, and manufacturing optical fiber rod

An optical fiber rod (30) according to the present invention includes a center region (35), an outer region (31) formed around the center region (35), and an intermediate region (33) formed between the center region (35) and the outer region (31), and satisfies nA>nB>nC where nA is the refractive index... Kuraray Co Ltd

Electrically charged nonwoven fabric, filtration material including same, and producing electrically charged nonwoven fabric

Use of an electrically charged nonwoven fabric that is made of a fiber predominantly composed of an amorphous polymer provides a novel filtration material having improved performance compared to that of conventional filtration materials, and having excellent heat resistance and excellent flame retardancy as well as an electrically charged nonwoven... Kuraray Co Ltd

Adsorption filter

The present invention relates to an adsorption filter including activated carbon and a fibrillated fibrous binder, in which the activated carbon has a 0% particle diameter (D0) of 10 μm or more in a volume-based cumulative particle-size distribution and has a 50% particle diameter (D50) of 90 to 200 μm... Kuraray Co Ltd

Polishing-layer molded body, and polishing pad

Disclosed is a polishing-layer molded body including: a thermoplastic polyurethane that is a polymer of a monomer including: a polymer diol; an organic diisocyanate; a first chain extender including a diol having 4 or less carbon atoms; a second chain extender including a diol having 5 or more carbon atoms,... Kuraray Co Ltd

Interlayer film for laminated glass and laminated glass

An interlayer film for laminated glass includes at least one layer A containing a thermoplastic elastomer, wherein the shear storage modulus of the layer A at 70° C. as measured by performing a dynamic viscoelasticity test at a frequency of 1,000 Hz in accordance with ASTM D4065-06 is 1 MPa... Kuraray Co Ltd

Dispersion stabilizer for suspension polymerization and producing vinyl resin

A dispersion stabilizer for suspension polymerization is provided that includes a vinyl alcohol-based polymer (A), wherein a 0.1 mass % concentration aqueous solution of the polymer (A) has an absorbance (a1) of less than 0.25 at a wavelength of 280 nm, the aqueous solution has an absorbance (a2) of less... Kuraray Co Ltd

Silage film, wrapped fodder, and storage fodder

A silage film having at least one layer of a resin composition containing an ethylene-vinyl alcohol copolymer (A) and a hydroxy group-containing compound (B). In the resin composition containing the ethylene-vinyl alcohol copolymer (A) and the hydroxy group-containing compound (B), the hydroxy group-containing compound (B) has a molecular weight of... Kuraray Co Ltd

Sealant composition

The present invention provides a sealing material composition including 100 parts by mass of a polymer of farnesene (A) and from 1 to 4,000 parts by mass of a filler (B).... Kuraray Co Ltd

Methacrylate resin composition and molded article

A methacrylate resin composition containing a methacrylate resin and a phenoxy resin and a film consisting of the same, each having high transparency, small phase differences in a thickness direction, low heat shrinkage rate, high strength and good adhesion properties are provided. The methacrylate resin composition contains a methacrylate resin... Kuraray Co Ltd

Resin composition and film

a content of the amine compound with respect to 100 parts by mass of the modified PVA being from 0.01 parts by mass to 1 part by mass. In the formula (I), R1 represents a hydrogen atom, or an alkyl group having 1 to 8 carbon atoms; and R2 represents... Kuraray Co Ltd

Modified polyvinyl alcohol, resin composition, and film

wherein: a content of the monomer unit (I) is from 0.05 mol % to 10 mol %, and a content of the structural unit (II) is from 0.001 mol % to 0.5 mol % with respect to the total monomer units in the modified PVA; a viscosity average degree of... Kuraray Co Ltd

Method for producing (meth)acrylic resin

A method for producing (meth) acrylic resin at a low cost while maintaining high transparency even in long-term production using a polymerization apparatus is provided. A (meth) acrylic resin is obtained by the method comprising storing a thiol chain transfer agent in a tank made of an austenitic stainless steel... Kuraray Co Ltd

Nonwoven fabric formed from polyvinyl butyral continuous fibers, and manufacturing method therefor

A web is formed by integrating continuous fibers produced by melt-spinning, at a temperature of 220° C. or lower, polyvinyl butyral pellets having a butyralization degree of 50 to 90 mass %, an MFR of 0.5 to 45 g/10 min at 150° C. and 2.16 kgf, an acid value of... Kuraray Co Ltd

Non-porous molded article for polishing layer, polishing pad, and polishing method

Disclosed is a non-porous molded article for a polishing layer, the non-porous molded article including a thermoplastic polyurethane, wherein the thermoplastic polyurethane has a maximum value of a loss tangent (tan 5) in a range of −70 to −50° C. of 4.00×10−2 or less. Preferably, the thermoplastic polyurethane is obtained... Kuraray Co Ltd

Method for producing anionic polymer

Provided is a method for producing an anionic polymer in an industrially advantageous manner, whereby at the time of anionically polymerizing monomers using a solvent whose boiling point at atmospheric pressure is higher than the polymerization temperature, temperature control can be achieved by quickly removing the heat of the polymerization... Kuraray Co Ltd

Process for producing adsorbent including activated carbon

A process for producing an adsorbent comprising activated carbon, wherein the process comprises a molding step of molding an adsorbent through a plurality of stages, and wherein the molding step comprises molding in a final stage performed by tableting.... Kuraray Co Ltd

Modified polyvinyl alcohol and water-soluble film

0.60≦X/(X+Y)<1.0.... Kuraray Co Ltd

Resin composition containing ethylene-vinyl alcohol copolymer, molded product, and multilayer structure

A resin composition according to an aspect of the present invention comprises: an ethylene-vinyl alcohol copolymer (A); and a block copolymer (B) having a block (b1) that includes a vinyl aromatic monomer unit, and a block (b2) that includes an isobutylene unit, wherein the ethylene-vinyl alcohol copolymer (A) and the... Kuraray Co Ltd

Thermoplastic elastomer composition

Provided is a thermoplastic elastomer composition excellent in mechanical characteristics, abrasion resistance, etc., comprising: a crosslinked composition (X) obtained by heat-treating, under molten condition, a composition containing 100 pars of a block copolymer or a hydrogenated product thereof, the block copolymer including a polymer block A mainly derived from an... Kuraray Co Ltd

09/28/17 / #20170275451

Thermoplastic elastomer composition and molded article

Provided are: a thermoplastic elastomer composition, excellent in both abrasion resistance and mechanical characteristics, obtained by heat-treating a mixture under molten condition thereof, the mixture including: 100 parts of at least one addition-polymerized block copolymer selected from a block copolymer and a hydrogenated product thereof; the block copolymer has a... Kuraray Co Ltd

09/28/17 / #20170275575

Biological corrosion inhibitor for metals

An object of the present invention is to provide a biological corrosion inhibitor for a metal, which exhibits the effect at a low concentration and is superior in biodegradability. A biological corrosion inhibitor for a metal including 3-methylglutaraldehyde as an effective ingredient is provided.... Kuraray Co Ltd

09/28/17 / #20170275793

Conductive nonwoven fabric and producing meltblown nonwoven fabric used in conductive nonwoven fabric

Provided is a conductive nonwoven fabric, including a meltblown nonwoven fabric made from a melt liquid-crystal-forming wholly aromatic polyester having a melt viscosity at 310° C. of less than or equal to 20 Pa·s and satisfying (A) an average fiber diameter from 0.1 μm to 5 μm, (B) two or... Kuraray Co Ltd

09/21/17 / #20170267851

Ethylene-vinyl alcohol resin composition pellet

A pelletized resin composition according to the present invention contains an ethylene-vinyl alcohol resin (A), a polyamide (B), and a lower fatty acid magnesium salt (C) each in a specific amount, wherein the polyamide resin (B) is dispersed in the ethylene-vinyl alcohol resin (A) with an average dispersed particle diameter... Kuraray Co Ltd

09/21/17 / #20170268175

Paper composite, packaging material, and production paper composite

Provided is a paper composite superior in grease resistance, water resistance, and water vapor permeability, with an improvement of the grease resistance upon imparting grease resistance by using a greaseproofing agent having 6 or less carbon atoms. The paper composite contains: a paper substrate having an air permeation resistance of... Kuraray Co Ltd

09/21/17 / #20170271042

Insulation material

[Solution] An insulation material containing a resin composition containing: an ester (i) having one or more constitutional unit represented by the following formula (A) (wherein R1 and R2 each independently represent an alkyl group having from 1 to 4 carbon atoms); and a resin (ii).... Kuraray Co Ltd

09/14/17 / #20170260374

Copolymer, rubber composition using same, and tire

The present invention relates to a copolymer including a monomer unit (a) derived from isoprene and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing isoprene with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component... Kuraray Co Ltd

08/31/17 / #20170247823

Stretchable non-woven fabric having excellent repetition durability

Provided are a stretchable non-woven fabric including crimped fibers, satisfying the following formula: (σ65−σ55)/(σ30−σ20)≧2.5, when a stress σ (N/50 mm) at a strain ε of 20%, 30%, 55% and 65% in a stress-strain curve by a tensile test for at least one direction in a plane direction, is referred to... Kuraray Co Ltd

08/24/17 / #20170240713

Polyvinyl acetal film and uses thereof

Provided is a polyvinyl acetal film which, when used as an intermediate film for a laminated glass, can provide a laminated glass that exhibits a low degree of yellowness and excellent surface appearance, and which is thus useful as a sealing material or intermediate film that can prolong the life... Kuraray Co Ltd

08/24/17 / #20170240739

Active energy ray curable compositions

(In the formula, R1 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms.)... Kuraray Co Ltd

08/17/17 / #20170232709

Multilayer structure, packaging material including the same, and producing said multilayer structure

The present invention provides a novel multilayer structure including a layered product capable of maintaining high performance even after being subjected to extrusion coating lamination. The present invention relates to a multilayer structure including a layered product and a layer (H) stacked on the layered product. The layered product includes... Kuraray Co Ltd

08/17/17 / #20170232709

Multilayer structure, packaging material including the same, and producing said multilayer structure

The present invention provides a novel multilayer structure including a layered product capable of maintaining high performance even after being subjected to extrusion coating lamination. The present invention relates to a multilayer structure including a layered product and a layer (H) stacked on the layered product. The layered product includes... Kuraray Co Ltd

08/17/17 / #20170233619

Acrylic pressure-sensitive adhesive compositions and pressure-sensitive adhesive products

(wherein R2 is an organic group having 7 to 12 carbon atoms); (ii) 1 to 300 parts by mass of a tackifier resin; and (iii) 1 to 200 parts by mass of at least one plasticizer selected from process oils, and organic acid esters and oligomers thereof.... Kuraray Co Ltd

08/17/17 / #20170235028

Diffuser plate and producing diffuser plate

The present invention provides a diffuser plate and a method for producing a diffuser plate that can improve variations in luminance of transmitted light or reflected light in a simple structure and that enable easy design and production. The diffuser plate according to the present invention is a diffuser plate... Kuraray Co Ltd

08/17/17 / #20170235154

Diffuser plate and designing diffuser plate

The present invention provides a diffuser plate in a simple structure capable of achieving optical properties with less luminance irregularity and color irregularity and good quality of appearance. A diffuser plate is a diffuser plate where a plurality of microlenses are placed on a principal surface, shapes of the plurality... Kuraray Co Ltd

08/17/17 / #20170238428

Circuit board and manufacturing same

Provided are circuit board excellent in interlayer adhesion and solder heat resistance, and production method thereof. The circuit board is produced by a method including: preparing a plurality of at least one kind of thermoplastic liquid crystal polymer (TLCP) films, forming a conductor layer on one side or both sides... Kuraray Co Ltd

08/10/17 / #20170226237

Method for producing (meth)acrylic resin composition

A (meth)acrylic resin composition is obtained by a method comprising: continuously feeding a raw material solution essentially comprising methyl methacrylate, a chain transfer agent and a radical polymerization initiator, and optionally comprising an acrylic acid alkyl ester in a mass ratio of the acrylic acid alkyl ester to the methyl... Kuraray Co Ltd

08/10/17 / #20170226247

Vinyl alcohol polymer and use thereof

0.60<(log [η]+3.75)/log Mw<0.69   (2)... Kuraray Co Ltd

08/10/17 / #20170226249

Copolymer and molded article

A copolymer comprising a structural unit (I) derived from a phosphonate monomer (1) such as diethyl methacryloyloxymethyl phosphonate and diethyl 2-methacryloyloxyethyl phosphonate, a structural unit (II) derived from a radical polymerizable monomer (2) such as methacrylic acid, acrylic acid, 8-tricyclo[5.2.1.02,6]decanyl methacrylate, and t-butyl methacrylate, and a structural unit (III) derived... Kuraray Co Ltd

08/10/17 / #20170226249

Copolymer and molded article

A copolymer comprising a structural unit (I) derived from a phosphonate monomer (1) such as diethyl methacryloyloxymethyl phosphonate and diethyl 2-methacryloyloxyethyl phosphonate, a structural unit (II) derived from a radical polymerizable monomer (2) such as methacrylic acid, acrylic acid, 8-tricyclo[5.2.1.02,6]decanyl methacrylate, and t-butyl methacrylate, and a structural unit (III) derived... Kuraray Co Ltd

08/10/17 / #20170226367

Antistatic sheet, and packaging material and electronic device including the same

The present invention provides a novel antistatic sheet having high gas barrier performance, high water vapor barrier performance, and antistatic performance, and a packaging material and an electronic device that include the antistatic sheet. The present invention relates to an antistatic sheet including a multilayer structure including a base (X),... Kuraray Co Ltd

08/10/17 / #20170226390

Thermoplastic polymer composition and molded article

The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block... Kuraray Co Ltd

08/10/17 / #20170229047

Multilayer label, container including the same, and producing container

The present invention provides a multilayer label having good gas barrier properties and is capable of maintaining the gas barrier properties at a high level even when exposed to physical stresses such as deformation and impart. The present invention relates to a multilayer label for in-mold labeling. This multilayer label... Kuraray Co Ltd

08/03/17 / #20170218002

Method for producing tebbe complex

The present invention relates to a method for producing a Tebbe complex having high purity and high activity and having excellent storage stability in a high yield, the method including allowing bis(cyclopentadienyl)titanium dichloride and trimethylaluminum to react with each other in the presence of a solvent such that a solubility... Kuraray Co Ltd

08/03/17 / #20170218002

Method for producing tebbe complex

The present invention relates to a method for producing a Tebbe complex having high purity and high activity and having excellent storage stability in a high yield, the method including allowing bis(cyclopentadienyl)titanium dichloride and trimethylaluminum to react with each other in the presence of a solvent such that a solubility... Kuraray Co Ltd

08/03/17 / #20170218147

Film for liquid packaging containers and liquid packaging container

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... Kuraray Co Ltd

07/27/17 / #20170211227

Napped leather-like sheet and producing the same

A napped leather-like sheet is used that includes a fiber base material including a non-woven fabric of ultrafine fibers and an elastic polymer, wherein the napped leather-like sheet has a surface including a napped region including the ultrafine fibers that have been napped, and a plurality of unnapped regions including... Kuraray Co Ltd

07/20/17 / #20170203245

Water filter apparatus and filtering fine particles from water

The present invention provides a filtering material for filtering water having high collection efficiency and long filtering life, and a water filtering apparatus including the material. The present filtering material includes a laminated sheet in which a nanofiber layer formed from a nanofiber having a single fiber average diameter of... Kuraray Co Ltd

07/20/17 / #20170203278

Oxygen-absorbing resin composition

(where X is a methylene group or an oxygen atom, R1 is an alkenylene group having 3 to 12 carbon atoms, and n is an integer of 5 to 5000); at least one type of metal salt (C) selected from the group consisting of an iron salt, a nickel salt,... Kuraray Co Ltd

07/20/17 / #20170204214

Method for manufacturing hydrogenated polymer

wherein R1 to R10 are those as defined in the specification.... Kuraray Co Ltd

Patent Packs
07/13/17 / #20170197895

Production gamma, delta-unsaturated alcohols

Provided is a method from which a γ,δ-unsaturated alcohol having a much more smaller amount of inclusion of formic acid and a formic acid ester and having a high purity can be obtained in a high yield. Specifically, provided is a method for producing a γ,δ-unsaturated alcohol by causing a... Kuraray Co Ltd

07/13/17 / #20170198131

Thermoplastic elastomer pellets, and molded article formed from said pellets

Provided are a thermoplastic elastomer composition containing 100 parts by mass of (a) a specified hydrogenated block copolymer and 0.01 to 5 parts by mass of (b) at least one additive selected from an antioxidant and a light stabilizer, wherein the additive (b) is soluble in toluene at room temperature,... Kuraray Co Ltd

07/06/17 / #20170190812

Polyvinyl alcohol powder and producing same

The present invention is characterized by being a polyvinyl alcohol powder having an average particle diameter of 100 to 2000 μm as measured by optical microscopic observation at a humidity of 65% RH and a temperature of 25° C., having a bulk specific gravity (g/ml) of a portion ranging from... Kuraray Co Ltd

07/06/17 / #20170191190

Polyamide fibers, fiber structure using same, and clothing

Disclosed is a polyamide fiber having a degree of orientation equal to or higher than 0.7 and equal to or lower than 0.85. The polyamide fiber is suitably obtained by forming a polyamide component having high moisture absorbency and a specific soluble component into a conjugated fiber under specific fiber... Kuraray Co Ltd

07/06/17 / #20170191191

Polyetherimide-based fiber, manufacturing same, and fiber structure containing same

Where T1 denotes a temperature (Tg−15° C.) that is 15° C. lower than the glass transition point (glass transition temperature) of the polyetherimide resin, and T2 denotes a temperature (Tg+25° C.) that is 25° C. higher than the glass transition point.... Kuraray Co Ltd

06/29/17 / #20170183426

Ethylene-vinyl alcohol copolymer and resin composition, and molded product obtained using the same

wherein: Ma represents a molecular weight in terms of polymethyl methacrylate equivalent on a maximum value of a peak measured by the differential refractive index detector; and Mb represents a molecular weight in terms of polymethyl methacrylate equivalent on a maximum value of an absorption peak at a wavelength of... Kuraray Co Ltd

06/29/17 / #20170183428

Methacrylic resin or methacrylic resin composition

A methacrylic resin composition comprises not less than 90% by mass and not more than 100% by mass of a methacrylic resin [A] having: the total content of a structural unit derived from methyl methacrylate of not less than 90% by mass; a molecular weight MA of not less than... Kuraray Co Ltd

06/29/17 / #20170183442

Polyester polyol having alicyclic skeleton

A polyester polyol containing 1,3-propanediol having an alicyclic skeleton in a side chain and a dibasic acid component as constituent components, which has an alkali metal content of 20 ppm by mass or less.... Kuraray Co Ltd

06/29/17 / #20170183463

Methacrylic resin composition, molded article, film, and polarizing plate

A methacrylic resin composition that has high transparency and a small phase difference in the thickness direction, and is easily stretched is provided. A methacrylic resin composition according to the present invention includes a methacrylic resin and a polycarbonate resin, in which the polycarbonate resin has a viscosity-average molecular weight... Kuraray Co Ltd

06/29/17 / #20170183493

Ethylene-vinyl alcohol copolymer resin composition and producing same

[100−(a+c)]×0.9≦b≦[100−(a+c)]  (3).... Kuraray Co Ltd

06/29/17 / #20170183621

Culture method and cell cluster

The present invention provides a culture method for culturing, in recesses (10), a population including two or more cells including a cell derived from a stem cell and a mesenchymal cell. The cell derived from a stem cell is a cell obtained by differentiating a stem cell in vitro. The... Kuraray Co Ltd

06/22/17 / #20170173850

Biaxially stretched film and manufacturing the same, polarizer protective film, decorative film, and layered film

The present invention provides a method of manufacturing a biaxially stretched film which exhibits small heat shrinkage and has excellent dimensional stability. An unstretched thermoplastic resin film composed of at least one thermoplastic resin layer is biaxially stretched in a longitudinal direction and a width direction to manufacture the biaxially... Kuraray Co Ltd

06/22/17 / #20170174802

Copolymer and molded article

A copolymer comprising structural units derived from a monomer represented by formula (1) and structural units derived from another monomer (A). (In formula (1), ring Z1 represents a C3-10 ring structure optionally having an oxygen atom at any position formed together with two carbon atoms on γ-butyrolactone. R1 represents a... Kuraray Co Ltd

06/22/17 / #20170174971

Additive for slurry, drilling mud, and cement slurry

Provided by the present invention is an additive for a slurry being capable of inhibiting viscosity elevation and dehydration at high temperatures at low cost, through use for a slurry for civil engineering and construction (for example, a drilling mud and a drilling cement slurry for use in well drilling.... Kuraray Co Ltd

06/08/17 / #20170158830

Acrylic resin film

in which Mw(A) is the weight average molecular weight of the methacrylic resin (A), Mw(b1) is the largest weight average molecular weight among the methacrylic acid ester polymer block[s] (b1) and Mw(b2) is the largest weight average molecular weight among the acrylic acid ester polymer block[s] (b2).... Kuraray Co Ltd

Patent Packs
05/25/17 / #20170145173

Rubber-containing graft polymer powder, and encapsulant for solar cell and interlayer film for laminated glass containing the same

Provided is a film comprising: a resin composition comprising polyvinyl acetal and a rubber-containing graft polymer powder having a refractive index of 1.469 to 1.519; 0 to 100 ppm of calcium ions; and 1 to 1100 ppm of alkali metal ions and alkali earth metal ions in total.... Kuraray Co Ltd

05/11/17 / #20170129216

Multilayer structure, producing same, packaging material and product including same, and electronic device

The present invention relates to a multilayer structure including a base (X), a layer (Y), and a layer (Z) disposed contiguous to the layer (Y). The layer (Y) includes a compound (A) containing a phosphorus atom and a polymer (B) having a hydroxy group and/or carboxyl group. A mass ratio... Kuraray Co Ltd

05/04/17 / #20170119226

Water absorbent laminate and producing same

Provided is a water absorbent laminate including: a first fiber layer including a first fiber assembly including first hydrophilic fibers; and a second fiber layer including a second fiber assembly including wet-heat-adhesive fibers in an amount greater than or equal to 80% by mass, wherein a surface of the first... Kuraray Co Ltd

05/04/17 / #20170125811

Carbon material for nonaqueous electrolyte secondary battery and manufacturing same, and negative electrode using carbon material and nonaqueous electrolyte secondary battery

The object of the present invention is to provide a carbonaceous material which is obtainable from plant-derived char and has a decreased specific surface area. Further, the object of the present invention is to provide a non-aqueous electrolyte secondary battery having excellent dedoping capacity, non-dedoping capacity, and charge-discharge efficiency. The... Kuraray Co Ltd

04/06/17 / #20170096538

Electronic device

The present invention relates to an electronic device having an electronic device body 1 the surface of which is covered by a protective sheet. The protective sheet includes a multilayer structure including a base (X) and a layer (Y) stacked on the base (X). The layer (Y) includes a metal... Kuraray Co Ltd

03/30/17 / #20170087812

Resin composition, multi-layer structure, and bag-in-box inner container

A resin composition is provided that contains: an EVOH (A); an unmodified ethylene-α-olefin copolymer (B); an acid modified ethylene-α-olefin copolymer (C); and alkali metal salt (D), wherein a mass ratio [(A)/((B)+(C))] is from 80/20 to 65/35, a mass ratio [(B)/(C)] is from 92/8 to 70/30, (A) has an MFR of... Kuraray Co Ltd

03/30/17 / #20170088324

Multilayer structure, producing the same, packaging material and product that include the same, protective sheet for electronic devices, and coating liquid

The present invention relates to a multilayer structure including a base (X) and a layer (Y) stacked on the base (X), the layer (Y) containing the following at a specific ratio: a metal oxide (A); a phosphorus compound (B) containing a moiety capable of reacting with the metal oxide (A);... Kuraray Co Ltd

03/23/17 / #20170081597

Composition for removal of sulfur-containing compounds

Disclosed is a composition capable of removing safely and efficiently a sulfur-containing compound contained in a hydrocarbon, particularly hydrogen sulfide, an —SH group-containing compound, or a mixture thereof. Provided is a composition for removal of a sulfur-containing compound in a hydrocarbon, the sulfur-containing compound being hydrogen sulfide, an —SH group-containing... Kuraray Co Ltd

03/16/17 / #20170073509

Rubber compositions

The rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 10 parts by mass of a modified liquid diene rubber (B) that is obtained by adding a modifying agent to an unmodified liquid diene rubber (B′) and has functional groups derived from the modifying agent,... Kuraray Co Ltd

02/16/17 / #20170042766

Film for liquid packaging containers and liquid packaging container

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... Kuraray Co Ltd

02/16/17 / #20170043557

Interlayer film for laminated glass

An interlayer for a laminated glass is provided. The interlayer film contains (a) a polyvinyl acetal with an acetalization degree of 60 to 80 mol %, a content of a vinyl ester monomer unit of from 0.1 to 20 mol %, and a viscosity-average degree of polymerization of from 1400... Kuraray Co Ltd

02/16/17 / #20170044350

Ethylene-vinylalcohol resin composition, molded product, and multilayer structure

A resin composition containing an ethylene-vinylalcohol copolymer (A) and a hydroxyl group containing compound (B), the hydroxyl group containing compound (B) having a molecular weight of 200 or less, a ratio of the number of hydroxyl groups in one molecule relative to the molecular weight within a range of 0.02-0.03,... Kuraray Co Ltd

02/02/17 / #20170029534

Dispersion stabilizer for suspension polymerization, and producing vinyl resin

Provided is a dispersion stabilizer for suspension polymerization comprising an aqueous emulsion containing a dispersant (A), a dispersoid (B), a graft polymer (C), and an aqueous medium, wherein the dispersant (A) contains a surfactant, the dispersoid (B) contains a polymer having an ethylenically unsaturated monomer unit, the graft polymer (C)... Kuraray Co Ltd

02/02/17 / #20170029540

Vinyl resin production method

A dispersion stabilizer in the present invention contains an aqueous emulsion (a) obtained by dispersing a polymer (A) having an ethylenically unsaturated monomer unit in an aqueous medium, a PVA (B) having a degree of saponification of 65 mol % or more and less than 82 mol % and a... Kuraray Co Ltd

02/02/17 / #20170031156

Method for designing light diffusion pattern, manufacturing light diffusion plate, and light diffusion plate

The present invention provides a method for designing a light diffusion pattern with which a light diffusion pattern to exhibit desired light diffusion properties can be designed depending on a few systematic procedures. The method includes a lens data preparation step of preparing lens data having desired light diffusion properties,... Kuraray Co Ltd

01/26/17 / #20170022143

Highly durable polyester polyol

A polyester polyol containing 1,3-propanediol having an alicyclic skeleton in a side chain, 3-methyl-1,5-pentanediol and a dibasic acid component as constituent components.... Kuraray Co Ltd

01/19/17 / #20170015088

Laminate

(wherein R3 and R4 are independently represent a hydrogen atom or an alkyl group).... Kuraray Co Ltd

01/19/17 / #20170015787

Polyamide

The present invention provides a polyamide having excellent heat resistance, water resistance, and impact resistance. The present invention relates to a polyamide including: structural units derived from an aromatic dicarboxylic acid; and structural units derived from an aliphatic diamine. This polyamide contains 0.40 to 0.70 mol % in total of... Kuraray Co Ltd

01/19/17 / #20170015966

Spheroid-producing device, recovering spheroids, and producing spheroids

The present invention provides a device for producing a large number of uniform spheroids by an easy method. The spheroid-producing device (1) at least includes a first surface (11), a second surface (12), and a plurality of wall surfaces (13). The second surface (12) faces the first surface (11). The... Kuraray Co Ltd

01/19/17 / #20170016149

Polyester binder fibers

In the formula R1 and R2 are substituents each comprising arbitrary atoms chosen from C, H, N, O, S, P, and a halogen atom, the sum of the molecular weights of R1 and R2 is 40 or more, and n is a positive integer.... Kuraray Co Ltd

01/12/17 / #20170008988

Binder for formation of ceramic or for use in conductive paste, and use of same

There is provided a binder for ceramic formation or a conductive paste, comprising polyvinyl acetal having a degree of acetalization of from 50 to 85 mol %, a content of vinyl ester monomer unit of from 0.1 to 20 mol %, and having a viscosity-average degree of polymerization of from... Kuraray Co Ltd

01/12/17 / #20170009065

Rubber compositions

The rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 10 parts by mass of a modified liquid diene rubber (B) that is obtained by adding a modifying agent to an unmodified liquid diene rubber (B′) and has functional groups derived from the modifying agent,... Kuraray Co Ltd

01/12/17 / #20170010390

Film

A film obtained by molding a methacrylic resin composition, the methacrylic resin composition comprises: a methacrylic resin having a triad syndiotacticity (rr) of not less than 50% and a weight average molecular weight of 80000 to 200000 and comprising not less than 92% by mass of a structural unit derived... Kuraray Co Ltd








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