Patents Assigned to Mitsubishi Rayon Co., Ltd.
  • ANTIFOULING PAINT COMPOSITION, PRODUCTION METHOD OF ANTIFOULING PAINT FILM, AND ANTIFOULING PAINT FILM
    Publication number: 20130058889
    Abstract: The present invention provides an antifouling paint composition, by which a paint film can be formed using a small amount of an organic solvent, in which the strength and the self-abradability can be maintained for a long period, and by which a paint film having an excellent antifouling property can be formed. The antifouling paint composition according to the present invention contains an acrylic polymer (P), a radical polymerizable monomer (M) and an organic peroxide (O), wherein at least one of the acrylic polymer (P) and the radical polymerizable monomer (M) has a bivalent metal ester structure.
    Type: Application
    Filed: April 6, 2010
    Publication date: March 7, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Akio Iwamoto, Sueo Nakamura, Nobuaki Kanazawa
  • Palladium-containing catalyst, method for producing same, and method for producing ?, ?-unsaturated carboxylic acid
    Patent number: 8389760
    Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: March 5, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
  • PROCESS FOR PRODUCTION OF POROUS MEMBRANE
    Publication number: 20130049246
    Abstract: Disclosed is a process for production of a porous membrane that includes the steps of layering a film-forming dope that contains a polymer (A) that forms a membrane base, a polyvinylpyrrolidone (B) and a solvent (C) into a single layer or two or more layers; immersing the film-forming dope in a solidifying fluid that is a non-solvent with respect to the polymer (A) and is a good solvent with respect to the polyvinylpyrrolidone (B); and removing the polyvinylpyrrolidone (B), wherein the polyvinylpyrrolidone (B) has a K value of 50 to 80, a mass ratio r of the polyvinylpyrrolidone (B) to the polymer (A) is 0.5 or more and less than 1, and the viscosity of the film-forming dope at a membrane production temperature is 100 to 500 Pa·s.
    Type: Application
    Filed: April 5, 2011
    Publication date: February 28, 2013
    Applicant: MITSUBISHI RAYON CO., LTD
    Inventors: Masakazu Minagawa, Masashi Teramachi
  • Hydroxynitrile lyase
    Patent number: 8383389
    Abstract: An improved hydroxynitrile lyase characterized by having a mutation of substitution of at least one amino acid residue in the amino acid sequence of a wild-type hydroxynitrile lyase with another amino acid and by its hydroxynitrile lyase activity per transformant being higher than the hydroxynitrile lyase activity per transformant into which the wild-type hydroxynitrile lyase gene is introduced; and a method for producing a hydroxynitrile lyase, comprising expressing the improved hydroxynitrile lyase in a host and recovering the improved hydroxynitrile lyase from the resultant culture.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: February 26, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yasuhisa Asano, Takanori Akiyama, Fujio Yu, Eiji Sato
  • Impact resistance improver, thermoplastic resin composition, shaped article and method for producing graft copolymer
    Patent number: 8383726
    Abstract: Disclosed is a thermoplastic resin composition having excellent impact resistance at a low temperature, while maintaining high transparency; this thermoplastic resin composition is obtained by compounding an impact resistance improver into a thermoplastic resin, the impact resistance improver being composed of a graft copolymer which is obtained by polymerizing a vinyl monomer component in the presence of a polymer mixture containing a polymer having butadiene units as an essential component and a polymer having styrene units as an essential component, the polymer mixture containing 45 to 65% by mass of the butadiene units and 35 to 55% by mass of the styrene units.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: February 26, 2013
    Assignees: Mitsubishi Rayon Co., Ltd., Cheil Industries Inc.
    Inventors: Osamu Okunaka, Hiroyuki Nishii, Takashi Shouji, Keiji Nakamura, Tae Uk Kim, Byung Choon Lee
  • APPARATUS FOR PRODUCING METHACRYLIC POLYMER AND PRODUCTION METHOD THEREOF
    Publication number: 20130041117
    Abstract: Disclosed is an apparatus for producing a high-quality methacrylic polymer with good productivity, comprising a complete mixing type reactor 11, tubular reactors 12 and 13 which have been serially connected, and a volatile removing instrument 14, wherein at least two of the tubular reactors 12 and 13 are connected via a cooler 15 for cooling the reaction mixture. It is preferable that the cooler 15 is a multitubular cooler and the tubular reactors 12 and 13 are plug flow reactors.
    Type: Application
    Filed: April 4, 2011
    Publication date: February 14, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Masahiro Hayashida, Hisaaki Yoshimura, Daisuke Nonaka, Yusuke Morita, Mitsuhiro Matsuo
  • FILTERING METHOD OF WATER TO BE TREATED
    Publication number: 20130020261
    Abstract: A filtering method of water to be treated including: performing air diffusion from air diffusing units, while the water to be treated is processed with a filtering process using a membrane unit, wherein the filtering process is an intermittently performing filtering process, the membrane unit has two or more separation membrane modules, a membrane surface of the separation membrane modules has a flat shape and extends along a vertical direction, two or more air diffusing units are arranged in a lower-side direction of the membrane unit, the air diffusing units each has one or more air diffusing pipes, and when air is ejected from the air diffusing units, the air diffusing unit which ejects air is switched per a constant air diffusing time t1 so as to allow only one air diffusing unit to eject air, and the air diffusing time t1 is from 90 seconds to 300 seconds.
    Type: Application
    Filed: March 3, 2011
    Publication date: January 24, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Tomoki Kawagishi, Xiangji Sun
  • CONDUCTIVE POLYMER, QUALITY CONTROL METHOD FOR CONDUCTIVE POLYMER AND METHOD FOR PURIFYING CONDUCTIVE POLYMER TECHNICAL FIELD
    Publication number: 20130012655
    Abstract: The present invention provides a conductive polymer in which, when being formed into a coating film, foreign materials are difficult to be generated even the passage of time and a quality control method for a conductive polymer and has a repeating unit which is represented by the following general formula (1). The present invention also provides a quality control method for conductive polymers wherein conductive polymers with an area ratio (Y/X) of 0.60 or less are selected. In the formula R1 to R4 are each independently —H, a linear or branched alkyl group having 1 to 24 carbon atoms, a linear or branched alkoxy group having 1 to 24 carbon atoms, an acidic group, a hydroxyl group, a nitro group, —F, —Cl, —Br or —I; and at least one of R1 to R4 is an acidic group or a salt thereof.
    Type: Application
    Filed: March 23, 2011
    Publication date: January 10, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Takahiro Sakai, Tamae Takagi, Akira Yamakazi, Yasushi Horiuchi, Mamiko Takahara, Masaki Nakayama, Manabu Hoshino, Hiroaki Iriyama, Fumino Momose
  • ACTIVE ENERGY RAY-CURABLE RESIN COMPOSITION, AND PRODUCTION METHOD FOR PRODUCTS WITH SURFACES OF FINE CONCAVE-CONVEX STRUCTURES
    Publication number: 20130011572
    Abstract: The present invention relates to a production method for a product having a cured resin layer with a fine concave-convex structure formed on the surface of a substrate, the method including filling the space between a mold having a fine concave-convex structure composed of anodized alumina on the surface and a substrate with an active energy ray-curable resin composition, and curing the composition by irradiation with active energy rays, thereby forming a cured resin layer into which the fine concave-convex structure has been transferred on the surface of the substrate, wherein (A) the method includes treating the surface of the mold with a release agent, at least at transfer initiation, and (B) the active energy ray-curable resin composition includes a polymerizable compound, a polymerization initiator and a (poly)oxyethylene alkyl phosphate ester compound.
    Type: Application
    Filed: March 24, 2011
    Publication date: January 10, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Yusuke Nakai, Tadashi Nakamura, Tetsuya Jigami, Satoru Ozawa, Eiko Okamoto
  • PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE DRY FILM AND METHOD FOR FORMING PATTERN
    Publication number: 20130004895
    Abstract: A photosensitive resin composition comprising: a vinyl-based polymer (I) obtained by polymerizing a monomer mixture containing a monomer (a) having a phenolic hydroxyl group; a vinyl-based polymer (II) obtained by polymerizing a monomer mixture containing a carboxyl group-containing vinyl monomer (b), and having a weight average molecular weight of 20,000 to 100,000, provided that the vinyl-based polymer (I) is excluded; a quinonediazide compound (III); and a compound (IV) represented by following formula (5). [In the formula, Y is a hydrocarbon group of 1 to 6 carbon atoms; 1 and m are each independently an integer of 1 to 3; n is 1 or 2; p and q are each independently 0 or 1.
    Type: Application
    Filed: December 27, 2010
    Publication date: January 3, 2013
    Applicants: MICRO PROCESS INC., Mitsubishi Rayon Co., Ltd., EVERLIGHT CHEMICAL INDUSTRIAL CORPORATION
    Inventors: Akifumi Ueda, Hidetaka Nakagawara, Kazuo Watanabe, Shigeki Watanabe, Weiren Lan, Zhaowen Lin
  • SURFACE LIGHT SOURCE DEVICE, LIGHT GUIDE ELEMENT USED FOR SURFACE LIGHT SOURCE DEVICE, AND METHOD FOR PRODUCING LIGHT GUIDE ELEMENT
    Publication number: 20130003412
    Abstract: Disclosed is a plate-like light guide element (24) provided with a light incident surface, a light exit surface (242), and an underside surface (243) disposed on the opposite side of the light exit surface (242). A foamed surface layer (244) is formed on at least a part of at least either the light exit surface (242) or the underside surface (243). The foamed surface layer (244) contains air bubbles and has a recessed sectional surface including the normal direction of the light exit surface (242) or the underside surface (243). The light guide element (24) is produced by performing infrared laser etching for at least a part of at least one of the main surfaces of a plate-like light guide element material composed of an acryl resin plate produced by a continuous plate production method, to form the foamed surface layer (244).
    Type: Application
    Filed: March 15, 2011
    Publication date: January 3, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Kenji Yagi, Minoru Shimizu, Yasuo Wakui, Yoshiya Kurachi, Masatoshi Toda
  • CONDUCTIVE FILM AND METHOD FOR ITS PRODUCTION
    Publication number: 20120325545
    Abstract: To provide a method for producing a conductive film with excellent transparency and conductivity by a simple method suitable for large-area production. A method for producing a conductive film comprising a step of placing a template (B), having openings in a mesh structure running from the side that is to contact a substrate (A) through to the back side, on the surface of the substrate (A), and spreading a dispersion (D) of conductive particles (P) on the surface of the substrate (A) on which the template (B) has been placed, and drying it, thereby forming a mesh-like structure (C) of the conductive particles (P) near the points of contact between the substrate (A) and the template (B), and then removing the template (B) from the substrate (A) to form a mesh-like structure (C) of the conductive particles (P) on the surface of the substrate (A).
    Type: Application
    Filed: January 18, 2011
    Publication date: December 27, 2012
    Applicants: Kyoto University, Mitsubishi Rayon Co., Ltd., SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Ko Higashitani, Yasuhiro Tsudo, Masaki Nakayama, Shinji Kake
  • METHOD FOR PRODUCING ALPHA-ACYLOXYCARBONYL COMPOUND AND NOVEL ALPHA-ACYLOXYCARBONYL COMPOUND
    Publication number: 20120323014
    Abstract: A method for producing an ?-acyloxycarbonyl compound of the present invention includes performing an intermolecular reaction between a carboxylic acid and a carbonyl compound selected from the group consisting of ketones, aldehydes, and esters, which have a hydrogen atom at the ?-position, using a hydroperoxide as an oxidizer and an iodide salt as a catalyst precursor, thereby introducing an acyloxy group derived from the carboxylic acid into the ?-position of the carbonyl compound.
    Type: Application
    Filed: March 4, 2011
    Publication date: December 20, 2012
    Applicants: MITSUBISHI RAYON CO., LTD., National University Corporation Nagoya University
    Inventors: Kazuaki Ishihara, Muhammet Uyanik
  • Process for production of a betaine such as carnitine
    Patent number: 8334132
    Abstract: According to the present invention, by using 4-halogeno-3-hydroxybutanamide as a substrate in quaternary amination reaction with trialkylamine which is an important step in betaine (such as carnitine) preparation processes, it becomes possible to reduce the production of crotonic acid derivatives (the major by-product) greatly compared to conventional processes. Consequently, it becomes possible to prepare a betaine, such as carnitine, at a high yield.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: December 18, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kosuke Oishi, Eiji Sato, Hiroyuki Mori, Akira Yoshioka
  • Method for producing unsaturated aldehyde and unsaturated carboxylic acid
    Patent number: 8329942
    Abstract: A method for producing an unsaturated aldehyde and an unsaturated carboxylic acid through gas-phase catalytic oxidation of propylene, isobutylene or tertiary butanol, which is a raw material, with molecular oxygen in the presence of a catalyst comprising a complex oxide including molybdenum, bismuth and iron as essential components, by controlling the molar ratio of oxygen to the raw material such that a rate of reaction of the raw material is kept constant in the temperature range of from (TA-15)° C. to TA° C., where TA° C. is the boundary temperature of the activation energy of the catalyst.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 11, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masahide Kondo, Seiichi Kawato-ku, Toru Kuroda
  • Carbon nanotube-containing composition, composite, and methods for producing them
    Patent number: 8329065
    Abstract: Disclosed is a carbon nanotube-containing composition which contains a carbon nanotube and a urethane compound obtained by a reaction between a hydroxyl group-containing (meth)acrylate and a isocyanate compound. Also disclosed is a composite having a coating film or a cured film composed of the carbon nanotube-containing composition on at least one surface of a base material. The carbon nanotube-containing composition and the composite are excellent in electrical conductivity, film-formability, moldability, and transparency without deteriorating the characteristic properties of the carbon nanotube itself.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 11, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Fumino Momose, Takashi Saitoh
  • NOVEL CHAIN TRANSFER AGENT AND EMULSION POLYMERIZATION USING THE SAME
    Publication number: 20120309900
    Abstract: To provide a novel compound having both a surface-activating ability and a polymerization controlling ability. A compound represented by the following general formula (1) or (2): wherein, R1 and R3 are an organic group having the hydrophile-lipophile balance (HLB) determined by Griffin's method of 3 or more. The definitions of R1, R2, R3, R4, Z, p and q are described in the Description.
    Type: Application
    Filed: January 27, 2011
    Publication date: December 6, 2012
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Tetsuya Noda, Fuminori Nakaya, Keiichi Sakashita, Yousuke Matsunaga, Taeko Oonuma, Yoshiko Irie
  • PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE DRY FILM AND METHOD FOR FORMING PATTERN
    Publication number: 20120301830
    Abstract: The present invention is related to a photosensitive resin composition containing: a vinyl-based copolymer (I) obtained by polymerizing a monomer mixture containing a monomer (a) having a phenolic hydroxyl group and a carboxyl group-containing vinyl monomer (b); a quinonediazide compound (II) and a compound (III) represented by the following formula (5), and to a photosensitive dry film and a method for forming a patter by using the photosensitive resin composition.
    Type: Application
    Filed: December 27, 2010
    Publication date: November 29, 2012
    Applicants: MICRO PROCESS INC., Mitsubishi Rayon Co., Ltd., EVERLIGHT CHEMICAL INDUSTRIAL CORPORATION
    Inventors: Akifumi Ueda, Hidetaka Nakagawara, Kazuo Watanabe, Shigeki Watanabe, Weiren Lan, Zhaowen Lin
  • METHOD FOR PRODUCING ANTIFOULING COATING RESIN DISPERSION
    Publication number: 20120294824
    Abstract: It is an object of the present invention to provide an antifouling coating resin dispersion which has excellent storage stability and water resistance in sea water, can exhibit an antifouling effect over a long period of time, and has self-polishing properties with excellent adhesiveness. A method for producing the antifouling coating resin dispersion according to the present invention includes the steps of: producing a polymer (A) containing a divalent metal; and dispersing the polymer (A) in a dispersion medium containing water or a mixture of water and an organic solvent.
    Type: Application
    Filed: December 28, 2009
    Publication date: November 22, 2012
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Akio Iwamoto, Naomi Tanuma
  • Recovery method of pyrolysis product of resin
    Patent number: 8304573
    Abstract: A method of recovering pyrolysis products of resin of the present invention includes cooling gaseous pyrolysis products generated from pyrolysis of the resin in a pyrolysis tank to recover the resin as liquid pyrolysis products. The method includes the following steps (1) to (4): (1) continuously feeding fluidization gas, heated solid particles, and a resin into the pyrolysis tank to fluidize the solid particles and the resin by the fluidization gas; (2) continuously feeding the resin into the pyrolysis tank from a position which is ½ or less of the height of a solid particle layer in the pyrolysis tank in a stationary state; (3) continuously discharging the solid particles from a position lower than the height of a feeding position of the resin; and (4) heating the discharged solid particles in a heating furnace and then feeding the heated solid particles into the pyrolysis tank.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: November 6, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Akinobu Sasaki, Nobuyuki Kikuya, Takashi Ookubo, Masahiro Hayashida