Patents Assigned to Mitsui Chemical, Inc.
  • Patent number: 8770666
    Abstract: An object of the invention is to provide molded urethane foam pads and vehicle seats that can contribute to the reduction of environmental load and have appropriate impact resilience and hardness and excellent durability with good balance, and also have high comfort.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: July 8, 2014
    Assignees: Mitsui Chemicals, Inc., Toyota Jidosha Kabushiki Kaisha, Toyota Boshoku Kabushiki Kaisha
    Inventors: Kazuto Usaka, Koichi Sano, Hideaki Otsuka, Hiroyuki Utsumi, Takashi Inoh, Yoshiyuki Murata, Tsuguyoshi Sakai
  • Patent number: 8772625
    Abstract: Disclosed is an encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: July 8, 2014
    Assignees: Mitsui Chemicals, Inc., Mitsui Chemicals Tohcello, Inc.
    Inventors: Shigenobu Ikenaga, Fumito Takeuchi, Keiji Watanabe, Jun Tokuhiro, Takanobu Murofushi, Kazuhiro Yarimizu, Tomoaki Ito, Nobuhiro Maruko
  • Patent number: 8765872
    Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: July 1, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kuniaki Kawabe, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
  • Patent number: 8758741
    Abstract: A transformant is prepared to insert at least a gene expression cassette comprising a gene involved in the synthesis of 2-deoxy-scyllo-inosose into E. coli as host cells. A 2-deoxy-scyllo-inosose is synthesized from D-glucose, oligosaccharide, polysaccharide, starch and rice bran, using the transformant. A culture solution containing the 2-deoxy-scyllo-inosose is treated with a mixed bed or double bed type column comprising a hydrogen form of strong acidic cation exchange resin and an organic ion form of basic anion exchange resin. The 2-deoxy-scyllo-inosose as purified is reacted with trimethoxymethane to convert into 2-deoxy-scyllo-inosose dimethylketal, and the dimethylketal is crystallized and purified. Then, DOI is highly purified through hydrolyzing the dimethylketal in the presence of acid.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: June 24, 2014
    Assignees: Mitsui Chemicals, Inc., Niigata Bio-Research Park, Inc.
    Inventors: Masamichi Takagi, Takahisa Kogure, Naoki Wakisaka, Hiroaki Takaku, Katsumi Ajisaka, Tatsuo Miyazaki, Masao Hirayama
  • Publication number: 20140167091
    Abstract: The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent mechanical strength, excellent heat resistance, excellent high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating. A first embodiment of this thermoplastic resin composition for a reflective material includes: a polyester resin (A) that has a melting point or glass transition temperature of 250° C. or higher and includes an alicyclic hydrocarbon structure; a thermoplastic resin (B) that has a polyolefin backbone and a functional group; a white pigment (C); and an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt % of a functional group unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [?] being 0.04 to 1.0 dl/g.
    Type: Application
    Filed: July 31, 2012
    Publication date: June 19, 2014
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Hideto Ogasawara, Takashi Hama, Kuniaki Kawabe, Hirotaka Kanaya, Nobuhiro Takizawa, Akinori Amano, Hiroki Ebata, Kan Komiya
  • Patent number: 8753729
    Abstract: There is provided an adhesive resin composition suitable for a multilayer structure which retains sufficient adhesive strength even when in contact with gasoline or light gas oil, and has excellent long-term durability and durability in high-temperature fuels and excellent adhesive strength at high temperature. The adhesive resin composition of the invention includes a modified ethylene polymer (A1) which is graft-modified with an unsaturated carboxylic acid or a derivative thereof and which has a density of 930 to 980 kg/m3, and an unmodified ethylene polymer (A2) having a density of 910 to 929 kg/m3, wherein the adhesive resin composition has a melt flow rate (MFR) [ASTM D 1238 (temperature: 190° C., 2160 g load)] of 0.1 to 3 g/10 min and a density of 920 to 930 kg/m3 and has an elution amount of 60 wt % or less at 85° C. or lower as determined by cross-fractionation chromatography. The present invention also relates to a multilayer structure formed by using the adhesion resin composition.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: June 17, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shinya Omasa, Takashi Sakuma
  • Patent number: 8748654
    Abstract: A method for producing tolylene diisocyanate includes: mixing a first diaminotoluene containing 2,4-diaminotoluene and 2,6-diaminotoluene at a first isomer ratio and a second diaminotoluene containing 2,4-diaminotoluene and/or 2,6-diaminotoluene at a second isomer ratio that is different from the first isomer ratio so as to prepare mixed diaminotoluene; producing tolylene dicarbamate by reaction of the mixed diaminotoluene, urea and/or N-unsubstituted carbamic acid ester and alcohol; and thermally decomposing the tolylene dicarbamate.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: June 10, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Koji Takamatsu, Kazuhiro Kosumi, Takeshi Fukuda, Masaaki Sasaki
  • Patent number: 8748157
    Abstract: Hydroxycarboxylic acids are produced by using a microorganism that is improved in ability to regenerate oxidized-type nicotinamide adenine dinucleotide by being provided with an enhanced NADH dehydrogenase function by introducing a gene encoding NADH dehydrogenase into a microorganism.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: June 10, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takashi Morishige, Mitsufumi Wada, Hitoshi Takahashi, Daisuke Mochizuki, Junko Tokuda
  • Patent number: 8742040
    Abstract: A solid titanium catalyst component (I) comprising titanium, magnesium, halogen, a specific cyclic ester compound (a) and a specific cyclic ester compound (b), an olefin polymerization catalyst containing this catalyst component (I), and an olefin polymerization process using this olefin polymerization catalyst are disclosed. According to the solid titanium catalyst component, the olefin polymerization catalyst and the process for preparing an olefin polymer of the invention, an olefin polymer having high stereoregularity and a wide molecular weight distribution can be prepared with high activity, preparation of an olefin polymer excellent not only in molding properties such as high-speed streatchability and high-speed moldability but also in rigidity becomes possible, and besides, production cost can be reduced.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: June 3, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhisa Matsunaga, Kazutaka Tsuru, Kazumitsu Kawakita, Tetsunori Shinozaki
  • Patent number: 8742164
    Abstract: A method for producing toluenedicarbamate includes a carbamate production process of producing toluenedicarbamate by reaction between toluenediamine, urea, and/or N-unsubstituted carbamic acid ester, and alcohol; and a benzoyleneurea reduction process of reducing a disubstituted benzoyleneurea and a derivative thereof to 10 mol or less relative to 100 mol of toluenedicarbamate, wherein the disubstituted benzoyleneurea is represented by formula (1) below and has a methyl group and an amino group:
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 3, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Koichi Murayama, Yoshiki Shimokawatoko, Takashi Kanno, Koji Takamatsu, Hiroshi Takeuchi, Masaaki Sasaki, Yasushi Kotaki
  • Patent number: 8735527
    Abstract: [Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: May 27, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Akihiro Imai, Takeshi Osaki, Shigetoshi Sasano
  • Patent number: 8735499
    Abstract: The propylene-based polymer composition includes a specific amount of a propylene-based polymer (A) having a syndiotactic pentad fraction (rrrr fraction) of 85% or more and containing 90 to 100 mol % of a structural unit derived from propylene; a specific amount of a propylene-based copolymer (B) containing 40 to 89 mol % of a structural unit derived from propylene and 11 to 60 mol % of a structural unit derived from an ?-olefin and satisfying a specific equation of intrinsic viscosity [?] and MFR; and specific amount(s) of at least one polymer of an olefin-based thermoplastic elastomer (C), a styrene-based elastomer (D), a propylene/ethylene/?-olefin copolymer (E) and an isotactic propylene-based polymer (F), and optionally an ethylene/vinyl acetate copolymer (G) and/or an ethylene-based polymer (H).
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: May 27, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Naomi Urakawa, Makoto Nakano, Yasuhiro Kitahara, Ryosuke Aburaki, Akihiro Matsuda
  • Patent number: 8729189
    Abstract: The present invention provides a propylene-based block copolymer having high melt viscoelasticity, excellent balance between rigidity and impact resistance, good molding processability, and excellent molded product appearance, a composition containing the copolymer, and molded products obtained therefrom. The propylene-based block copolymer comprises 5 to 80% by weight of a room temperature n-decane-soluble portion (Dsol) and 20 to 95% by weight of a room temperature n-decane-insoluble portion (Dinsol) (the total amount of the Dsol and the Dinsol is 100% by weight), and satisfies the requirements [1] to [3]: [1] the molecular weight distribution (Mw/Mn) of the Dsol is 7.0 to 30, [2] the molecular weight distribution (Mw/Mn) of the Dinsol is 7.0 to 30, and Mz/Mw thereof is 6.0 to 20, and [3] the pentad fraction (mmmm) of the Dinsol is not less than 93%.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: May 20, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhisa Matsunaga, Keita Itakura
  • Patent number: 8728910
    Abstract: To provide an olefinic expandable substrate and a dicing film that exhibits less contamination characteristics, high expandability without necking, which cannot be achieved by conventional olefinic expandable substrates. In order to achieve the object, an expandable film comprises a 1-butene-?-olefin copolymer (A) having a tensile modulus at 23° C. of 100 to 500 MPa and a propylenic elastomer composition (B) comprising a propylene-?-olefin copolymer (b1) and having a tensile modulus at 23° C. of 10 to 50 MPa, wherein the amount of the component (B) is 30 to 70 weight parts relative to 100 weight parts in total of components (A) and (B).
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 20, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Eiji Hayashishita, Katsutoshi Ozaki, Mitsuru Sakai, Setsuko Oike
  • Patent number: 8728780
    Abstract: An object of the invention is to produce a microorganism which yields high amounts in a short time of a hydroxycarboxylic acid reduced in impurity content. This invention further provides a process for producing a hydroxycarboxylic acid, including glycolic acid, using the microorganism. This process enables a hydroxycarboxylic acid having high purity to be supplied at low cost.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: May 20, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mitsufumi Wada, Daisuke Mochizuki, Hitoshi Takahashi, Takashi Morishige, Katsuyuki Takahashi
  • Publication number: 20140131691
    Abstract: The purpose of the present invention is to provide a polymerizable resin composition with which the cured product refractive index is high and the viscosity under a high shear stress is a specific viscosity or lower. Provided is an polymerizable epoxy composition comprising (A1) an S-containing epoxy resin represented by a general formula, (A2) an epoxy compound having a softening point of 70° C. or lower, (B) a curing promoter, and (C) a thiol compound having two or more thiol groups per molecule, wherein viscosity at 25° C. and 60 rpm as determined using a B viscometer is between 100 and 15,000 mPa·s.
    Type: Application
    Filed: July 5, 2012
    Publication date: May 15, 2014
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yugo Yamamoto, Masatoshi Takagi, Shunsuke Fujii, Shintaro Maekawa, Setsuko Oike
  • Patent number: 8722752
    Abstract: Disclosed is a polyurethane resin which is obtained by a reaction between a polyisocyanate component, which contains 1,4-bis(isocyanatomethyl)cyclohexane including not less than 80% by mole of trans isomers, and an active hydrogen compound component.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: May 13, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Goro Kuwamura, Toshihiko Nakagawa, Daisuke Hasegawa, Satoshi Yamasaki
  • Patent number: 8716418
    Abstract: A process for producing a syndiotactic ?-olefin polymer having high racemic diad fraction and high molecular weight with excellent polymerization activity through a method permitting high-temperature polymerization. The production process comprises polymerizing a monomer that comprises at least one C3-10 ?-olefin and a small amount of ethylene, in the presence of an olefin polymerization catalyst comprising a transition metal compound (A) represented by the general formula [1], at least one compound (B) selected from an organoaluminum oxy-compound (b-1), a compound (b-2) that reacts with the transition metal compound (A) to form an ion pair and an organoaluminum compound (b-3), which process for producing a syndiotactic ?-olefin polymer satisfies the relationship: 0.001?PE/PO?0.030, provided that the molar amounts of ethylene and an ?-olefin having 3 to 10 carbon atoms that are fed into a polymerization reactor under a polymerization temperature of not lower than 25° C. are PE and PO, respectively.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 6, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masayoshi Yamamoto, Takashi Yukita, Masahiro Yamashita, Hiromu Kaneyoshi
  • Patent number: 8716427
    Abstract: A two-component curable solventless adhesive which enables a laminated composite film comprising a barrier layer and a plastic film laminated with each other to maintain excellent appearance and adhesive strength for a long period even after a sterilization treatment at high temperature, and to appropriately adjust a reaction between a base resin and a curing agent during a production of the laminated composite film. The two-component curable solventless adhesive comprises a base resin and a curing agent, wherein the base resin contains a polyol having an acid group and a secondary or tertiary terminal hydroxyl group accounting for 30% or more of the entire terminal hydroxyl groups of the polyol, and the curing agent contains an isocyanate group-terminated urethane prepolymer containing at least an aralkyl polyisocyanate and/or a modified substance thereof as a raw polyisocyanate, and a content of a low molecular weight polyisocyanate is defined.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: May 6, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Akihiro Imai, Kazuaki Imamura, Taiji Morimoto, Hiroshi Kawasaki, Mikio Matsufuji
  • Patent number: 8710132
    Abstract: Disclosed is a flame-retardant polyamide composition excellent in fluidity during molding and granulation ability on a twin-screw extruder or the like. A molded article produced from the composition is excellent in mechanical properties including stiffness, heat resistance and flame retardancy during a reflow soldering process, and shows low warpage. Specifically disclosed is a flame-retardant polyamide composition comprising 20 to 80 mass % of a specific polyamide resin (A), 1 to 40 mass % of a flame retardant (B), 5 to 60 mass % of a glass fiber (C), and 0.5 to 5 mass % of an auxiliary flame retardant (D), which can be molded in an article having reduced warpage. Preferably, the glass fiber (C) has a cross section having an aspect ratio of greater than 3.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: April 29, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hideto Ogasawara, Masashi Seki