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Assignee: Zeon Corporation


Location: Tokyo, JP
No. of patents: 219

1            
NumberTitleIssue Date
8182944Composite particles for electrochemical element electrode
The present invention provides a method of producing composite particle for high density electrochemical element electrodes in electrochemical elements having low internal resistance and high capacitance. Slurry containing an electric conductive material and ...
05/22/2012
8178270Toner for development of electrostatic image
A toner for development of electrostatic images, comprising colored resin particles containing a binder resin and a colorant, and an external additive, wherein the external additive contains fine particles of an inorganic layered clay compound, and the inorganic lay...
05/15/2012
8173345Toner and process of production of the same
[PROBLEMS] To provide a toner superior in shelf stability, not giving off an offensive odor and degrading the surrounding environment when used for printing, and superior in durability at the time of use for continuous printing under high temperature, high humidity ...
05/08/2012
8158322Toner
The toner of the present invention, comprising a colored resin particle and an external additive, wherein said external additive contains a silica fine particle (A) having a Dv50/Dv10 of 1.8 or more, in which Dv10 represents a particle diameter at which a volume cum...
04/17/2012
8158021Polymerizable liquid crystal compound, polymerizable liquid crystal composition, liquid crystalline polymer, and optical anisotropic article
A polymerizable liquid crystal compound shown by the following formula (I), a polymerizable liquid crystal composition that includes the polymerizable liquid crystal compound and a chiral compound polymerizable with the polymerizable liquid crystal compound, a liqui...
04/17/2012
8153727Block copolymer, resin composition comprising same, and process for producing the resin composition
A block copolymer comprised of a polymer block or blocks (A) comprising conjugated diene monomer units and a polymer block or blocks (B) comprising conjugated diene monomer units and aromatic vinyl monomer units, wherein (1) the polymer block or blocks (A) have a gl...
04/10/2012
8153712Crosslinkable rubber composition and cross-linked rubber
A crosslinkable rubber composition comprising 0.2 to 10 parts by weight of an aromatic secondary amine-based anti-aging agent and 0.5 to 20 parts by weight of a polyamine-based crosslinking agent with respect to 100 parts by weight of a nitrile rubber including an Î...
04/10/2012
8147953Laminate and process for producing the same
An object of the invention is to provide a laminate which is good in adhesiveness between a substrate and a thin film laminated thereon by a dry film-forming method such as a chemical vapor growth method or a vacuum evaporation method even if the substrate is a poly...
04/03/2012
8139181Polarization plate, liquid crystal display device and protective film
Provided are a polarization plate which has a high mechanical strength, which does not impair a visibility even under a high temperature and high humidity, which is excellent in flexibility and abrasion resistance, and which reduces a visible disturbance such as col...
03/20/2012
8134666Liquid crystal display device
A liquid crystal display device of an in-plane switching mode comprises at least optically anisotropic members (A) and (B) and a liquid crystal cell disposed between a pair of polarizers having absorption axes disposed approximately perpendicularly to each other, wh...
03/13/2012
8133948Nitrile rubber composition, cross-linkable nitrile rubber composition and cross-linked rubber
Disclosed herein are a nitrile rubber composition comprising a nitrile rubber (a) including an α,β-ethylenically unsaturated nitrile monomer unit and having iodine value of 100 or less, an α,β-ethylenically unsaturated carboxylic acid metallic salt (b), and sila...
03/13/2012
8124474Method for producing electrode for electric double layer capacitor
A method for producing an electrode for electric double layer capacitors is disclosed which includes: a step of mixing a particulate elastomer and a carbonaceous material with each other in a powdery form, thereby obtaining a powdery mixture; and a step of dry-formi...
02/28/2012
8119289Electro-chemical element electrode
An electrochemical element electrode for obtaining electrochemical elements having both low internal resistance and high capacitance, and a secondary battery and an electric double layer capacitor using the electrode are provided. An electrochemical element e...
02/21/2012
8097391Toner for developing electrostatic image
Provided is a toner for developing electrostatic image which is excellent in shelf stability, and is further excellent in low-temperature fixability so as to be capable of maintaining a high fixing rate even at a low fixing temperature. A toner for developing...
01/17/2012
8097200Process for producing stretched film, stretched film, polarizer, and liquid-crystal display
A method for producing a stretched film comprising supplying a film composed of a thermoplastic resin along a direction D1 that is different from a taking-up direction D2 of a post-stretch film, and obliquely stretching the film while transferring the ...
01/17/2012
8092975Method for producing toner for devoloping electrostatic image
Provided is a method for producing a toner for developing electrostatic image which inhibits the generation of small diameter microparticles as a by-product in the polymerization for the toner, which includes easy or simple washing treatment (washing/filtration/dehy...
01/10/2012
8092974Production method of toner for developing electrostatic image
A production method of a toner includes a suspension process in which a polymerizable monomer composition is dispersed in an aqueous dispersion medium; and a polymerization process in which suspension polymerization is performed with the suspension in the presence o...
01/10/2012
8092969Full color image forming process
A process for forming a full-color image, wherein the 4 color toners each have an apparent viscosity at 105° C. of 50,000 to 300,000 Pa·s and an apparent viscosity at 130° C. of 3,000 to 30,000 Pa·s, and as a color toner arranged at the outermost layer on a tran...
01/10/2012
8089208Planar light source device
A planar light source device is provided which has high light extraction efficiency and in which a change in color tone at different viewing angles is small. The planar light source device includes, on a light emitting surface, a concavo-convex structure layer made ...
01/03/2012
8084542Shaped article composed of an acrylic rubber composition
An acrylic rubber comprised of a copolymer comprising 0.1 to 20% by weight of (A) units of a butenedioic acid monoester monomer having an alicyclic structure and 50 to 99.9% by weight of (B) units of at least one kind of monomer selected from acrylic acid ester mono...
12/27/2011
8080623Polymerizable composition, crosslinkable resin, and manufacture methods and applications thereof
A polymerizable composition suitable as an electric material and the like used in an electric circuit board, which comprises a norbornene monomer, a metathesis polymerization catalyst, and a chain transfer agent composed of a compound represented by formula (A):
12/20/2011
8067140Toner for developing electrostatic image and method of producing the same
A toner for developing electrostatic image which has a reduced residual amount of a decomposed product of a polymerization initiator remaining in the toner upon production (mainly an ether component) and an unreacted polymerizable monomer (mainly styrene), less odor...
11/29/2011
8064003Thin film transistor integrated circuit device, active matrix display device, and manufacturing methods of the same
There is provided an active matrix display device including a flattening layer formed so as to surround a source electrode wiring, a drain electrode wiring, and a signal line, so that the source electrode wiring, the drain electrode wiring, and the signal line form ...
11/22/2011
8053531Hydrogenated crystalline norbornene ring-opening polymer and molded article
A hydrogenated crystalline norbornene ring-opening polymer is obtained by hydrogenating 80% or more of carbon-carbon double bonds of a ring-opening polymer that is obtained by ring-opening polymerization of norbornene monomers including 90 to 100 wt % of 2-norbornen...
11/08/2011
8053051Oxygen-absorbing barrier resin composition, film comprising the same, multilayer structure, and packing container
To provide an oxygen-absorbing barrier resin composition which has excellent oxygen-barrier properties even under high-humidity conditions and can give a multilayer structure having excellent peel strength; an oxygen-absorbing barrier film comprising the oxygen-abso...
11/08/2011
8048495Cholesteric liquid crystal composition, circular polarization separator sheet and use thereof
Provided are a cholesteric liquid crystal composition which contains a compound having a high Δn value and shows an orientation in a thick layer, and a circular polarization separator sheet having a wide reflection bandwidth and capable of being produced simply and...
11/01/2011
8048478Method of manufacturing electrode for electrochemical device
A method of manufacturing an electrode for an electrochemical device is provided with the steps of: supplying, onto a collector, a powdered mixture containing a binder and an active material; and heating the powdered mixture to form an electrode layer on the collect...
11/01/2011
8044147Nitrile group-containing copolymer rubber and a vulcanizable nitrile group-containing copolymer rubber composition
A nitrile group-containing copolymer rubber comprising 10 to 40 wt % of α,β-ethylenically unsaturated nitrile unit (a), 10 to 60 wt % of α,β-ethylenically unsaturated carboxylic acid ester unit (b), and 20 to 70 wt % in total of conjugated diene unit (c) and sat...
10/25/2011
8034881Cross-linkable nitrile rubber composition and cross-linked rubber
A cross-linkable nitrile rubber composition containing a highly saturated nitrile rubber (a) having an α,β-ethylenically unsaturated nitrile monomer unit and a carboxyl-group containing monomer unit and having an iodine value of 120 or less, a cross-linking agent ...
10/11/2011
8017813Process for production of cycloalkyl alkyl ethers
The present inventions are (A) a solvent comprising at least one cycloalkyl alkyl ether (1) represented by the general formula: R1—O—R2 (wherein R1 is cyclopentyl or the like; and R2 is C1-10 alkyl or the like); (B) a method of preparations the ethers (1) charac...
09/13/2011
8013090Film comprising norbornene compound addition polymer
A film comprising a norbornene (NB) compound addition polymer that is excellent in chemical resistance, optical properties and the like, has a high Tg, a low water absorption ratio and a low linear expansion coefficient, and is soluble in an ordinary solvent.
09/06/2011
7998563Protective film for polarizing plate
A protective film for polarizing plate comprising k layers (k is an integer of 2 or more) of thermoplastic resin layer laminated, wherein a refractive index ni(380) at a wavelength of 380 nm and a refractive index n...
08/16/2011
7972535Composite particles for electrochemical device electrode, method of production of composite particles for electrochemical device electrode, and electrochemical device electrode
Composite particles for an electrochemical device electrode containing an electrode active material, a conductive material, and a binder, wherein primary particles of the composite particles have a volume average particle size of 1 to 500 μm and, when a relative pa...
07/05/2011
7964685Polymerizable composition
A polymerizable composition is obtained by mixing a metathesis polymerization catalyst including benzylidene(1,3-dimethyl-4-imidazolidin-2-ylidene)(tricyclohexylphosphine)ruthenium dichloride, a cycloolefin monomer such as 2-norbornene or tetracyclo[6.2.1.13,6
06/21/2011
7964254Optical laminate, optical element and liquid crystal display device
An optical laminate having layer A having a resin having a negative intrinsic birefringence and at least one layer B having a transparent resin, having substantially no orientation and laminated at least on one face of layer A and satisfies a relation |Re(A)|>|Re(B)...
06/21/2011
7951981Process for producing perfluoroalkyne compound
A process for producing a perfluoroalkyne compound includes an addition reaction step of adding Cl2, Br2, or I2 to a compound shown by the formula (1) CH3C≡CR1 to obtain a compound shown by the formula (2) CH
05/31/2011
7939600Binder for electric double layer capacitor electrode
Provided are a binder for an electric double layer capacitor electrode which gives an electrode having a high electrode density and a high binding force and which comprises a polymer that can give a polymer film having a tensile stress of 2 MPa or less when the film...
05/10/2011
7923515Dip-forming composition and dip-formed article
A dip-formed article that has wearing comfort, excelling in not only tensile strength but also flexing fatigue and that itself does not tend to suffer coloration even when the article is worn and operation is continued; and a dip-forming composition capable of provi...
04/12/2011
7923514Method of hydrogenating conjugated diene polymer, hydrogenation catalyst system, and composition of basic, conjugated diene polymer
A process for hydrogenating a conjugated diene polymer wherein a conjugated diene polymer is hydrogenated in the presence of a catalyst comprising a platinum group metal or its compound, and a basic compound. More specifically, (1) hydrogenation is conducted in a re...
04/12/2011
7919558Rubber composition and pneumatic tire using the same
A rubber composition containing (i) a conjugated diene-based rubber gel having a toluene swelling index of 16 to 70, (ii) a diene-based rubber such as natural rubber, polyisoprene rubber, aromatic vinyl-conjugated diene copolymer rubber and/or polybutadiene rubber, ...
04/05/2011
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