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Assignee: Kureha Corporation


Location: Tokyo, JP
No. of patents: 98

1      
NumberTitleIssue Date
8183336Poly (arylene sulfide)
In a process for producing a poly(arylene sulfide) by polymerizing a sulfur source and a dihalo-aromatic compound in the presence of an alkali metal hydroxide in an organic amide solvent, the production process comprises washing a polymer obtained by the polymerizat...
05/22/2012
8171711Hybrid carbon fiber spun yarn and hybrid carbon fiber spun yarn fabric using the same
A hybrid carbon fiber spun yarn having a core region with carbon fibers as a main component, and a surrounding region with carbon fibers as a main component and covers an outer peripheral surface of the core region. 20% by mass or more of fibers forming the core reg...
05/08/2012
8163866Aromatic polyester resin composition
An aromatic polyester resin composition, including: a melt-kneaded product of 99-70 wt. parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the ...
04/24/2012
8158242Stock shape for machining and production process thereof
A stock shape for machining, which is composed of an extruded product of a resin composition comprising 30 to 94% by mass of a thermoplastic resin (A), 5 to 40% by mass of a carbon precursor (B) having a volume resistivity of 102 to 1010 Ωcm a...
04/17/2012
8158240Stock shape for machining
A stock shape for machining, which is composed of an extruded product of a resin composition comprising 30 to 94% by mass of a thermoplastic resin (A), 5 to 40% by mass of a carbon precursor (B) having a volume resistivity of 102 to 1010 Ωcm a...
04/17/2012
8138302Polyarylene sulfide and process for producing the same
In a production process of a poly(arylene sulfide), a mixture containing an organic amide solvent, an alkali metal hydrosulfide and an alkali metal hydroxide in a proportion of 0.95 to 1.05 mol per mol of the alkali metal hydrosulfide is heated and dehydrated in a d...
03/20/2012
8133955Aromatic polyester resin composition and process for production thereof
An aromatic polyester resin composition, comprising: a melt-kneaded product of 99-70 weight parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein ...
03/13/2012
8119699Method of recycling laminated molding
A method of recycling a laminate shaped product, including the steps of: breaking a shaped product having a laminate structure including at least one layer of aliphatic polyester resin in addition to a principal resin layer, storing resultant broken pieces in a mois...
02/21/2012
8076447Poly (arylene sulfide) and production process thereof
A poly(arylene sulfide) having properties that a melt viscosity is 1 to 3,000 Pa·s as measured under conditions of a temperature of 310° C. and a shear rate of 1,216 sec−1, a pH is 7.0 to 12.0 as measured in a mixed solvent of water/acetone (volume ra...
12/13/2011
8043386Process for producing polymer electrolyte
A process for producing a polymer electrolyte for a nonaqueous battery by mixing a vinylidene fluoride copolymer and a nonaqueous electrolytic solution with a solvent that can be evaporated, wherein the vinylidene fluoride copolymer comprises 80 to 97 wt. % of vinyl...
10/25/2011
8039548Method for purifying hydroxycarboxylic acid, method for producing cyclic ester, and method for producing polyhydroxycarboxylic acid
A process for purification of a hydroxycarboxylic acid by distillation, comprising: distilling a hydroxycarboxylic acid solution containing a high-boiling point hydroxy compound comprising at least one species selected from the group consisting of alcohols and pheno...
10/18/2011
8003721Aliphatic polyester composition and method for producing the same
Polyglycolic acid and polylactic acid having a weight-average molecular weight of at most 50,000 are melt-kneaded in the presence of a thermal stabilizer to obtain a polyglycolic acid-based aliphatic polyester composition. The aliphatic polyester composition allevia...
08/23/2011
7998385Method for producing multilayer stretch-molded article
A transparent multilayer stretched product is produced through a process including: providing a resin laminate including at least on layer of polyglycolic acid resin, heat-forming and cooling the resin laminate, reheating the resin laminate until the polyglycolic ac...
08/16/2011
7993713Heat shrinkable multilayer film and packaging material using the same
A heat shrinkable multilayer film comprising an outer surface layer (a) formed of a thermoplastic resin, a first intermediate layer (b1) formed of a polyamide resin, a second intermediate layer (b2) formed of a saponified product of an ethylene-vinyl a...
08/09/2011
7989066Support member for high-temperature heat-treated metal molding object and process for production thereof
A carbonaceous support member for a high-temperature heat-treated metal molding object, particularly a setter for heat-treatment in powder metallurgy, is formed as a carbon-ceramic composite shaped product having a bulk density of 1.2-1.6 g/ml and including a carbon...
08/02/2011
7977512Amine derivative, and production method and use thereof
Disclosed is a benzonitrile derivative which is useful as a production intermediate for benzylamine derivative represented by the general formula (5) below and s secondary amine derivative represented by the general formula (9) below. Also disclosed are a method for...
07/12/2011
7976919Multilayer blow molded container and production process thereof
A multilayer blow molded container having a layer structure that a polyglycolic acid layer is provided as a core layer, and thermoplastic polyester resin layers are arranged as inner and outer layers, wherein the core layer formed of the polyglycolic acid layer is n...
07/12/2011
7959995Deep drawing heat shrinkable multilayer film and method of manufacturing the same
A deep drawing heat shrinkable multilayer film includes: an intermediate layer made of a vinylidene chloride copolymer resin (a); and a resin layer made of a first thermoplastic resin (b) layered on at least one surface of the intermediate layer. The multilayer film...
06/14/2011
7947790Porous film of vinylidene fluoride resin and method for producing same
A porous membrane of vinylidene fluoride resin excellent in hydrophilicity and having a good balance among strength, elongation and water permeation rate, which is thus useful as a microfiltration membrane or a separator of battery. The porous membrane is formed fro...
05/24/2011
7943707Vinylidene fluoride polymer and process for producing the same
A monomer comprising vinylidene fluoride as a principal component is suspension-polymerized by supplying the monomer in division to a polymerization system containing a polymerization initiator at a pressure below a critical pressure Pcr (=4.38 MPa) of vinylidene fl...
05/17/2011
7939028Apparatus and method for continuous high temperature gas treatment of particulate matter
An apparatus for continuous high temperature gas treatment of particulate matter including a starting material supply port (1) through which starting particulate matter is supplied from an upper part of the apparatus; a treatment gas supply port (2) th...
05/10/2011
7932281Amine-based compound and use thereof
Amine compounds represented by Formula (1) are efficacious against diseases such as a viral infectious disease with HIV, rheumatism, and cancer metastasis: ...
04/26/2011
7931967Thermally foamable microsphere and production process thereof
The invention provides a thermally foamable microsphere having a structure with a foaming agent encapsulated in a shell formed of a polymer, wherein the shell contains an organosilicon compound, and a process for producing a thermally foamable microsphere having a s...
04/26/2011
7887903Antifog laminated film
The present invention provides a laminated film including at least two layers of an outer layer having a printed portion on a surface and an inner layer subjected to an antifogging treatment in which principal resin comprising a solid content of the printed portion ...
02/15/2011
7872805Lenticular lens medium
A lenticular lens medium forms a lenticular lens which includes a plurality of semicylindrical-shaped or arc-shaped elongated convex parts. The lenticular lens medium has a volume resistivity of 1×107-1×1014 Ω·cm and a surface resistivity o...
01/18/2011
7858239Negative electrode material for non-aqueous electrolyte secondary battery, process for producing the same, negative electrode, and non-aqueous electrolyte secondary battery
A negative electrode material for non-aqueous electrolyte secondary batteries, which is best suited for large current I/O non-aqueous electrolyte secondary batteries represented by those for hybrid electric vehicles (HEVs), which are unlikely to be influenced by the...
12/28/2010
7851084Vinylidene fluoride based core-shell type polymer and use thereof in nonaqueous electrochemical device
A core/shell polymer (A), comprising: a rubbery core comprising a crosslinked vinylidene fluoride copolymer (a) having a vinylidene fluoride content of 30-90 wt. % and a shell comprising a vinylidene fluoride polymer (b) having a vinylidene fluoride content which is...
12/14/2010
7849891Device and method for measuring hard granular objects
A device for measuring a hard granular object. The device includes a measuring vessel, a holder, a shutter, and a pressing means for pressing the holder against the measuring vessel. The measuring vessel includes a first face, a second face parallel to the first fac...
12/14/2010
D629044Label
12/14/2010
7834133Production process of poly(arylene sulfide)
A process for producing a poly(arylene sulfide) including a charging step 1 of preparing a charging mixture containing an organic amide solvent, a sulfur source, an alkali metal hydroxide, water and a dihalo-aromatic compound and having a pH of at least 12.5; a firs...
11/16/2010
7833991Amine compound and use thereof
It is intended to provide novel amine compounds which are efficacious against diseases such as infection with HIV virus, rheumatism and cancer metastasis. Namely, amine compounds represented by the following general formula (1): ...
11/16/2010
7812181Process for producing glycolide and glycolic acid oligomer for production of glycolide
Glycolide production through depolymerization of glycolic acid oligomer is stabilized by controlling impurities in the glycolic acid oligomer to allow economical and effective production of glycolide. More specifically, the depolymerization system is controlled to s...
10/12/2010
7807590Isotropic pitch-based carbon fiber spun yarn, composite yarn and fabric using the same, and manufacturing methods thereof
A method of manufacturing an isotropic pitch-based carbon fiber spun yarn fabric includes the following steps of: obtaining composite yarn by winding a water-soluble polymer fiber around a surface of isotropic pitch-based carbon fiber spun yarn; obtaining a composit...
10/05/2010
7807272Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methods
A coating solution comprising: a first solvent; 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent; and 0.05 to 0.25 chemical equivalent...
10/05/2010
7807088Polyvinylidene fluoride resin powder for melt molding and process for producing molding from the resin powder
Polyvinylidene fluoride resin powder for melt molding, which exhibits such particle size distribution characteristics that the average particle diameter (D50) is 80 to 250 μm, the proportion of resin powder having a particle diameter of at most 45 μm is...
10/05/2010
7799837Bottle excellent in recyclability and method for recycling the bottle
There are provided a bottle which has a laminate structure including a glycolic acid polymer layer showing good gas-barrier property in addition to a principal resin layer and is yet provided with excellent recyclability, and also an efficient method of recycling th...
09/21/2010
7785682Multilayer sheet made of polyglycolic acid resin
A polyglycolic acid resin-based multilayer sheet, comprising: a plant substrate sheet and a biodegradable resin layer laminated by melt-adhesion onto the plant substrate sheet, wherein said biodegradable resin layer comprises one or plural layer including at least a...
08/31/2010
7781600Process for purifying hydroxycarboxylic acid, process for producing cyclic ester, and process for producing polyhydroxycarboxylic acid
Disclosed is a process for purifying a hydroxycarboxylic acid, comprising: a crystallization step of subjecting a hydroxycarboxylic acid aqueous solution to crystallization for purification, a separation step of separating a hydroxycarboxylic acid crystal from a mot...
08/24/2010
7781519Solubilizer and composition containing same
The present invention provides a solubilizing agent that can give solubility or dispersibility in resins to copper-containing phosphorus compounds, and a composition containing the solubilizing agent. The solubilizing agent of the invention comprises a compound repr...
08/24/2010
7781370Process for producing spherical activated carbon
A spherical activated carbon is produced from a starting pitch obtainable from a heavy hydrocarbon oil, such as petroleum tar, coal tar or ethylene, through a moderate process. The starting pitch has a softening point of at least 150° C., a toluene-insoluble conten...
08/24/2010
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