Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20200390594
    Abstract: A mouthpiece including a constituent portion (X) that includes an olefin-based polymer (A) having a repeating unit having 2 or 3 carbon atoms and that satisfies a bending elastic modulus (?) at 23° C. of 80 MPa???1000 MPa.
    Type: Application
    Filed: February 27, 2017
    Publication date: December 17, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Takashi Yukita, Maki Yamamoto, Hideyuki Nagai, Yasufumi Tsuchiya
  • Patent number: 10865269
    Abstract: A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 30 mol % or more and 80 mol % or less.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: December 15, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshihiko Nakagawa, Aya Nakagawa, Shinji Kiyono, Hirokazu Morita, Satoshi Yamasaki
  • Patent number: 10864101
    Abstract: A garment, containing a tubular joint supporter section, the section including: a central region in an axial direction of the tubular joint supporter section, which includes a wear pressure applying region for applying wear pressure to a joint site of a body, a one-end side region positioned at one end, and an other-end side region positioned at another end side, in which the wear pressure of the wear pressure applying region is higher than an average wear pressure of the one-end and other-end side regions, and regions other than the wear pressure applying region in the section include a concave-convex structure region formed from a concave-convex structure; and a knee supporter, in which an average wear pressure A of the knee support section is higher than an average wear pressure B of the thigh side support section and the shin side support section.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 15, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tomoaki Ito, Kenji Iida, Motoyasu Yasui, Shiori Ito, Kazuoki Nakai, Fumiaki Saikawa
  • Patent number: 10858473
    Abstract: A polythiol composition includes a polythiol compound (a) that includes at least one kind selected from the compounds represented by the following formulae (6) to (8) as main component, and a compound (b) wherein, in a high performance liquid chromatography measurement of the polythiol composition under defined conditions, the peak area of the compound (b) which appears at the retention time from 6.5 minutes to 8.0 minutes is equal to or less than 3.0, with respect to the peak area of 100 of the polythiol compound (a) which appears at the retention time from 22.0 minutes to 28.0 minutes. A process for producing a polythiol composition, a method of manufacturing a molded product, a molded product, an optical element and a lens are also provided.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masaru Kawaguchi, Takeshi Nishimura
  • Patent number: 10859865
    Abstract: The lens comprises: a first transparent substrate that includes a diffraction region in which a plurality of convex strips and groove sections are formed in alternation in concentric circles; a second transparent substrate that faces the first transparent substrate; a liquid crystal layer disposed in a space present between the diffraction region and the second transparent substrate; and a first transparent electrode and a second transparent electrode that impress a voltage on the liquid crystal layer. The diffraction region comprises a first diffraction region and a second diffraction region that is disposed in at least part of a portion different from the first diffraction region. The space comprises: groove-shaped spaces present between the groove sections and the second transparent substrate; and a communicating space disposed between at least part of the convex shapes of the second diffraction region and the second transparent substrate, and communicating between neighboring groove-shaped spaces.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yoshinobu Okada, Eiichiro Hikosaka, Toshifumi Hino, Akifumi Aono, Akihiro Muramatsu
  • Patent number: 10858472
    Abstract: A polythiol composition includes a polythiol compound (a) represented by the following formula (5) and a compound (b) wherein, in a high performance liquid chromatography measurement of the polythiol composition under defined conditions, the peak area of the compound (b) which appears at the retention time from 4.3 minutes to 5.6 minutes is equal to or less than 3.0, with respect to the peak area of 100 of the polythiol compound (a) which appears at the retention time from 12.0 minutes to 13.5 minutes. A process for producing a polythiol composition, a method of manufacturing a molded product, a molded product, an optical element and a lens are also provided.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 8, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masaru Kawaguchi, Takeshi Nishimura
  • Publication number: 20200377772
    Abstract: The purpose of the present invention is to provide a semiconductor substrate manufacturing method, which prevents detachment of a semiconductor wafer being ground, and which prevents cracking or chipping in a semiconductor substrate obtained. In order to solve the problem, the semiconductor substrate manufacturing method comprises: a polyimide layer forming step of forming a polyimide layer on a support material; a wafer attaching step of affixing the support material and a semiconductor wafer to each other with the polyimide layer disposed therebetween; a wafer grinding step of grinding the semiconductor wafer; a support material peeling step of peeling the support material from the polyimide layer; and a polyimide layer peeling step of peeling the polyimide layer from the semiconductor wafer. The polyimide layer includes polyimide which includes a benzophenone skeleton and an aliphatic structure, wherein an amine equivalent weight is 4000 to 20000.
    Type: Application
    Filed: April 19, 2018
    Publication date: December 3, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Jun KAMADA, Kaichiro HARUTA, Takashi UNEZAKI, Kiyomi IMAGAWA, Kenichi FUJII, Yasuhisa KAYABA, Kazuo KOHMURA
  • Publication number: 20200378846
    Abstract: A sensor module includes a holding member formed of an elastic body, a pressure bearing face provided at the holding member and configured to bear pressure, an adjoining face provided at the holding member so as to adjoin the pressure bearing face and configured to undergo deformation in accordance with the pressure borne by the pressure bearing face, and an elongate piezoelectric substrate arranged on the adjoining face.
    Type: Application
    Filed: August 3, 2018
    Publication date: December 3, 2020
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Katsuki ONISHI, Kazuhiro TANIMOTO, Mitsunobu YOSHIDA
  • Publication number: 20200377637
    Abstract: A curable composition for stereolithography, comprising a photopolymerizable component and a photopolymerization initiator, wherein a cured product of the curable composition has a minimum value of a storage elastic modulus, in a range of from 25° C. to 300° C., of not greater than 1.20×107 Pa.
    Type: Application
    Filed: March 28, 2019
    Publication date: December 3, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takaaki HAYASHI, Toshikazu SAKAMAKI
  • Publication number: 20200369812
    Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.
    Type: Application
    Filed: November 27, 2018
    Publication date: November 26, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideki WASA, Haruka SAITO, Sunil Krzysztof MOORTHI, Futoshi FUJIMURA, Masahiko OKAMOTO, Emi ONIKI, Kouichi KIZU, Jiacheng HE
  • Patent number: 10842682
    Abstract: A nonwoven fabric layered body, including: an elastic nonwoven fabric; and an extensible spunbond nonwoven fabric that is disposed on at least one surface side of the elastic nonwoven fabric and that has a degree of maximum load elongation of 50% or more in at least one direction, the nonwoven fabric layered body satisfying the following (1) and (2). (1) The elastic nonwoven fabric includes a resin composition containing a specific low-crystalline polypropylene, and an ?-olefin copolymer A containing an ethylene-derived constitutional unit and a propylene-derived constitutional unit, and having a melting point of 100° C. or more and a crystallization degree of 15% or less. (2) The resin composition contains from 5 parts by mass to 50 parts by mass of the ?-olefin copolymer A with respect to 100 parts by mass of the resin composition.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shouichi Takaku, Kenichi Suzuki, Tetsuya Yokoyama, Koichi Shimada
  • Patent number: 10844010
    Abstract: In a process for producing a (poly) sulfide compound represented by General Formula (2) of the present invention, thiol compounds represented by General Formula (1) are reacted with each other in the presence of a basic compound represented by General Formula (4) or General Formula (5) and sulfur.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koichi Tokunaga, Chitoshi Shimakawa, Shigetoshi Kuma, Masaru Kawaguchi
  • Publication number: 20200362492
    Abstract: Provided is a spunbonded nonwoven fabric, including a fiber formed of a composition containing: a propylene homopolymer having a melting point of 140° C. or higher; a polyethylene; and at least one polymer selected from the group consisting of a polymer shown in (I), and a polymer shown in (II), in which the fiber has a sea-island structure, and an average length of an island phase is from 1 ?m to 500 ?m in a cross section taken along a major axis direction of the fiber, and a method for producing thereof, and in which the polymer shown in (I) is a random copolymer of a propylene with ?-olefin having specified number of carbon atoms and the polymer shown in (II) is a propylene homopolymer having a melting point of less than 120° C. satisfying the specified properties.
    Type: Application
    Filed: January 23, 2019
    Publication date: November 19, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Taiichiro ICHIKAWA, Koichi SHIMADA, Shigeyuki MOTOMURA, Akio MATSUBARA
  • Publication number: 20200347265
    Abstract: Provided is a composition for forming a film for semiconductor devices, including: a compound (A) including a Si—O bond and a cationic functional group containing at least one of a primary nitrogen atom or a secondary nitrogen atom; a crosslinking agent (B) which includes three or more —C(?O)OX groups (X is a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms) in the molecule, in which from one to six of three or more —C(?O)OX groups are —C(?O)OH groups, and which has a weight average molecular weight of from 200 to 600; and a polar solvent (D).
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yasuhisa KAYABA, Hirofumi TANAKA, Koji INOUE
  • Patent number: 10827658
    Abstract: An electronic device housing of the present invention is a housing for internally accommodating an electronic device and is provided with a metal bottom plate, and metal side plates folded and integrally connected to the bottom plate, in which, in a metal member (M) formed of at least the bottom plate and the side plate, a thermoplastic resin member is joined to a portion of the surface of the plate-shaped metal member (M), the metal member (M) is reinforced by a thermoplastic resin member, and the thermoplastic resin member is joined to both surfaces of the plate-shaped metal member (M).
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 3, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shinya Naito, Nobuyoshi Shimbori
  • Patent number: 10822531
    Abstract: A two-component curable solventless-type laminate adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains a derivative of a pentamethylene diisocyanate, the derivative of the pentamethylene diisocyanate contains an isocyanurate group and an allophanate group, and the content ratio of the isocyanurate group with respect to 100 moles of the total amount of the isocyanurate group and the allophanate group is 60 moles or more and 99 moles or less.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 3, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Junichi Nakagawa, Akihiro Imai, Kazuhiro Ando, Toshihiko Nakagawa, Hirokazu Morita, Satoshi Yamasaki
  • Publication number: 20200338121
    Abstract: A carbon dioxide slow-release pack for skin according to the present invention is a carbon dioxide slow-release pack which has a bag shape for slowly releasing carbon dioxide enclosed therein, thereby bringing the carbon dioxide into contact with the skin, and is formed into a bag shape by at least a resin sheet (A), and the resin sheet (A) satisfies at least the following requirements (A-1) and (A-2): (A-1) A carbon dioxide permeability measured under the conditions of 23° C. and a relative humidity of 0% according to JIS K7126-1 is 20 L/(m2·day·atm) or more, (A-2) An Oken-type air permeability measured at 23° C. according to JIS P8117: 2009 is less than 5 ?m/(Pa·s).
    Type: Application
    Filed: October 17, 2018
    Publication date: October 29, 2020
    Applicants: MITSUI CHEMICALS, INC., KAO CORPORATION
    Inventors: Tomoya MATAYOSHI, Takayuki WATANABE, Michio ERIGUCHI, Masahito TANAKA
  • Publication number: 20200338807
    Abstract: Provided is a method for producing a concave-convex structure, the method including a preparation step of preparing a laminate including a base material layer, a photocurable resin layer containing a fluorine-containing cyclic olefin polymer (A), a photocurable compound (B) and a photocuring initiator (C), and a protective film layer in this order; a peeling step of peeling the protective film layer of the laminate; a pressing step of pressing a mold against the photocurable resin layer exposed in the peeling step; and a light irradiation step of irradiating the photocurable resin layer with light, in which a concave-convex structure having an inverted concave-convex pattern of the mold is produced.
    Type: Application
    Filed: December 5, 2018
    Publication date: October 29, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takashi ODA, Hisanori OHKITA, Makoto NAKASHIMA
  • Publication number: 20200330911
    Abstract: Provided is a melt-blown nonwoven fabric including a propylenic polymer that shows at least one peak top at a position of a molecular weight of 20,000 or higher and at least one peak top at a position of a molecular weight of less than 20,000 in a discharge curve obtained by gel permeation chromatography, that has an intrinsic viscosity [?] of from 0.35 dl/g to 0.50 dl/g.
    Type: Application
    Filed: September 26, 2018
    Publication date: October 22, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kozo IIBA, Teruki KOBAYASHI
  • Patent number: D903122
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya