Patents Assigned to Mitsui Chemicals, Inc.
  • Patent number: 11338562
    Abstract: It is a main object of the present invention to impart higher antifogging properties to the hydrophilic material formed of a crosslinked resin, having a surface enriched with hydrophilic groups, previously proposed by the inventors. The laminate of the present invention includes a water absorbing layer (B) and a hydrophilic layer (A) provided in this order on a substrate, wherein the hydrophilic layer (A) is formed of a crosslinked resin having an anionic, cationic or nonionic hydrophilic group, and has a gradient of hydrophilic groups (intensity of hydrophilic group on surface of the hydrophilic layer (A)/intensity of hydrophilic group at ½ of thickness of the hydrophilic layer (A)) of not less than 1.1; and the water absorbing layer (B) is formed of a crosslinked resin having a water absorption rate per unit mass (g) of in the range of 5 to 500 wt %.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: May 24, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takayuki Hanawa, Koju Okazaki
  • Publication number: 20220152973
    Abstract: Disclosed is a laminate having a carbon fiber reinforced thermoplastic resin woven layer (X) and a thermoplastic resin foam layer (Y) layered in the order of layer (X)/layer (Y)/layer (X), wherein the fabric contains unidirectional fiber reinforced resin sheets as warp and weft, the unidirectional fiber reinforced resin sheet containing continuous carbon fibers and a thermoplastic resin, and the carbon fibers are aligned in a longitudinal direction of the unidirectional fiber reinforced resin sheet, and the ratio (y/x) of the thickness (y) of the layer (Y) and the thickness (x) of the layer (X) is 3-40, and the density of the layer (Y) is 0.2-0.6 g/cc. Also disclosed are: a three-dimensional molded laminate in which a three-dimensional shape is given to said laminate; and a method for producing a three-dimensional molded laminate.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takeharu ISAKI, Kazuya MIZUMOTO
  • Publication number: 20220153978
    Abstract: A resin composition, a shaped article, a fiber, a film and a sheet. The resin composition includes two or more kinds of polyolefin resins (A), and 0.05 to 10 mass % of an ?-olefin (co)polymer (B) satisfying requirements (b-1) to (b-3): (b-1) A methyl group index is 40 to 60%. The methyl group index is a ratio of an integral of a peak observed in a range of 0.50 to 1.15 ppm to an integral of peaks observed in a range of 0.50 to 2.20 ppm in a 1H-NMR spectrum of a solution of the (co)polymer (B) in deuterated chloroform, positions of the peaks being calculated relative to a solvent peak at 7.24 ppm assigned to CHCl3 in deuterated chloroform as a reference. (b-2) A weight average molecular weight determined by GPC is 1,500 to 20,000. (b-3) No melting point is observed from ?100 to 150° C. in DSC.
    Type: Application
    Filed: March 23, 2020
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yuto YOSHIDA, Atsushi TAKESHIMA, Terufumi SUZUKI, Kouji MATSUNAGA, Kuniaki KAWABE
  • Publication number: 20220158247
    Abstract: A nonaqueous electrolytic solution for a battery that includes a negative electrode active material containing graphite, the nonaqueous electrolytic solution for a battery containing a compound represented by the following Formula (1): in Formula (1), R represents a fluorine atom or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms.
    Type: Application
    Filed: March 18, 2020
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kei SUGAWARA, Satoko FUJIYAMA
  • Publication number: 20220153963
    Abstract: The method of producing an optical material of the present disclosure includes a step of mixing a resin monomer for an optical material and an additive to prepare a polymerizable composition for an optical material having a hue specified by L* of 70 or more b* of from ?30 to 10 in the CIE 1976 (L*, a*, b*) color space when measured at a thickness of 10 mm, and a step of polymerizing and curing the polymerizable composition for an optical material.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masaru KAWAGUCHI, Shinsuke ITO
  • Publication number: 20220153972
    Abstract: [Object] An object of the present invention is to provide a thermoplastic elastomer composition with excellent heat aging resistance and also excellent hardness and mechanical properties as well as excellent moldability. [Solution] A thermoplastic elastomer composition (I) including a cross-linked product of an ethylene.?-olefin.nonconjugated polyene copolymer (A) with a phenolic resin cross-linking agent (E), and 360 to 460 parts by mass of a crystalline polyolefin (B), 70 to 140 parts by mass of a softener (C), and 2 to 6 parts by mass of a lubricant (D) (provided that the amount of the copolymer (A) is 100 parts by mass).
    Type: Application
    Filed: March 16, 2020
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yasuhiro SHIBATA, Yusuke YODA, Kakeru CHIGAMA, Akihiro YAMAMOTO
  • Publication number: 20220153894
    Abstract: A photo-curable composition including a di-(meth)acrylic monomer (A) having two (meth)acryloyloxy groups and two urethane bonds, an acrylic monomer (B) having one acryloyl group, and a photopolymerization initiator, as well as a cured product of the photo-curable composition, and a dental product including the cured product.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 19, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Toshikazu SAKAMAKI, Hirohisa SHIODE, Mai KIMURA
  • Patent number: 11332643
    Abstract: Provided is an adhesive member including: a base material having an uneven shape on at least one surface; and a surface layer covering at least a portion of the surface having the uneven shape on the base material.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: May 17, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Jun Kamada, Tomoya Matayoshi, Michio Eriguchi, Kaichiro Haruta, Kenichi Fujii, Takashi Unezaki, Kazuo Kohmura
  • Patent number: 11331211
    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: Grant
    Filed: February 27, 2017
    Date of Patent: May 17, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Maki Yamamoto, Hideyuki Nagai, Yasufumi Tsuchiya
  • Publication number: 20220149463
    Abstract: Provided are an outer packaging film for a lithium-ion battery, a lithium-ion battery, and a lithium-ion battery stack. The outer packaging film for a lithium-ion battery has a layered structure that includes a thermal adhesive layer, a metal layer, and a gas barrier layer, wherein the thermal adhesive layer, the metal layer, and the gas barrier layer are arranged in this order, and wherein the layered structure further includes a self-extinguishing layer.
    Type: Application
    Filed: March 26, 2020
    Publication date: May 12, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinji YAMAMOTO, Yuri SUGIHARA
  • Publication number: 20220145052
    Abstract: A propylene resin composition includes a propylene polymer (A) satisfying requirements (1) to (3) below: (1) having a number average molecular weight (Mn) measured by gel permeation chromatography (GPC) of 5000 to 22000; (2) having a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) measured by gel permeation chromatography (GPC) being 1.2 to 3.5; and (3) having a proportion of a component eluted at a temperature of not more than ?20° C. in temperature rising elution fractionation (TREF) being not more than 3.5 mass %.
    Type: Application
    Filed: March 17, 2020
    Publication date: May 12, 2022
    Applicants: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Keita ITAKURA, Katsuhiko KOIKE, Ryoko HIROI, Hiroyuki FUKUSHIMA, Kou TSURUGI, Atsushi SHIBAHARA, Fumiaki NISHINO, Kohei TANAKA, Yasuhiro KAI, Naoya NODA, Kenji MICHIUE, Takanori FURUTA
  • Publication number: 20220146859
    Abstract: A lens ordering system includes: a computer, the computer being provided with a CPU, a storage unit, and a selection unit that is configured to be controlled by the CPU. The storage unit stores data, configured to enable determination of lens information that includes a resin material type, a pigment type, and a coating type that are used for a lens material, based on user information that includes basic information pertaining to a user, and at least one of usage information pertaining to lens usage desired by the user or psychosomatic information including psychosomatic symptoms and conditions including the eyes of the user. The selection unit determines and outputs the lens information based on the user information acquired pertaining to the user and the data stored in the storage unit.
    Type: Application
    Filed: March 10, 2020
    Publication date: May 12, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Shinsuke ITO
  • Publication number: 20220135787
    Abstract: Provided is a photocurable composition used for forming a resin layer of a concave-convex structure including a substrate and a resin layer provided on the substrate and having fine concavities and convexities formed on a surface thereof. A cured film of the photocurable composition has a surface free energy of 15 mJ/m2 to 40 mJ/m2 as measured based on the Kitazaki-Hata theory and a hardness of 0.05 GPa to 0.5 GPa as measured using a nanoindenter.
    Type: Application
    Filed: March 31, 2020
    Publication date: May 5, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takashi ODA, Hisanori OHKITA, Hiroko WACHI, Shingo YAMAMOTO
  • Patent number: 11319403
    Abstract: The polyurethane resin composition contains, a polyisocyanate component containing p-MDI, a polyol component, an organic metal catalyst, and a reaction retardant represented by general formula (1) below, wherein the mole ratio of the reaction retardant relative to 1 mol of the organic metal catalyst is 0.50 or more and 2.50 or less. (in general formula (1), A represents an aliphatic ring or an aromatic ring, R1 represents a hydrocarbon group composing ring A, R2 represents an aliphatic hydrocarbon group bonded to ring A. R3 represents a hydrogen atom or alkyl group bonded to nitrogen atom included in ring A. R1 represents a hydrogen atom or carboxyl group bonded to ring A. m is 1 or 2, n is 0 or 1, and total of n and no is 2 or less.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 3, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshihiro Tanaka, Hiroshi Kanayama, Minoru Watanabe, Hiroki Inoue, Junji Saito
  • Patent number: 11312114
    Abstract: The present invention has an object of providing an ethylene/?-olefin/non-conjugated polyene copolymer composition excellent in the adhesive strength with a layer of a saponified ethylene/vinyl acetate copolymer; and the present invention relates to a laminate comprising a layer of a copolymer composition comprising 100 parts by mass of an ethylene/?-olefin/non-conjugated polyene copolymer (A) and one or more additives selected from the following (1) to (3), and a layer of the saponified ethylene/vinyl acetate copolymer (B). (1) 1.7 to 20 parts by mass of dicumyl peroxide and 2 to 20 parts by mass of a metal oxide; (2) 20 to 120 parts by mass of a hydrophilic fumed silica; and (3) 5 to 50 parts by mass of an ethylene/vinyl acetate copolymer (B).
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 26, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yoshiharu Kikuchi, Kotaro Ichino
  • Patent number: 11311462
    Abstract: Provided are adhesive monomers for dental materials including compounds represented by the general formula (1) below, in which the core (X) and the terminal group (Y1) are bonded to each other directly or via the linking group (Z): X(Y1)n1a(Z—Y1)n1b(1) wherein n1a represents the number of terminal groups (Y1) directly bonded to the core (X), n1b represents the number of terminal groups (Y1) bonded to the core (X) via the linking group (Z), and the sum of n1a and n1b is equal to the valence of the core (X); the core (X), the linking group (Z) and the terminal group (Y1) are further defined. The adhesive monomers can enhance adhesive strength to the tooth in dental treatment, and impart high mechanical strength to cured products.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 26, 2022
    Assignees: MITSUI CHEMICALS, INC., KULZER GMBH
    Inventors: Yoko Kosugi, Akiko Matsumoto, Kazuhiko Yoshinaga, Michael Gerlach, Maria Lechmann-Dorn, Jutta Schneider, Andreas Utterodt
  • Patent number: 11312857
    Abstract: A polymerizable composition of the present invention includes a polymerization reactive compound (A), and an internal release agent (B) including a polyether-modified silicone compound (b1) represented by General Formula (1) and a polyether-modified silicone compound (b2) represented by General Formula (2), in which the polymerization reactive compound (A) is one or more compounds selected from a polyiso(thio) cyanate compound, a poly(thio) epoxy compound, a polyoxetanyl compound, a polythietanyl compound, an alkyne compound, a poly(thi)ol compound, a polyamine compound, an acid anhydride, or a polycarboxylic acid compound.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: April 26, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Motoharu Oiki, Koju Okazaki
  • Patent number: 11311642
    Abstract: Disclosed are: a composition for hard tissue repair with excellent penetrability to an adherend such as a cancellous bone and excellent adhesion to an adherend, which comprises a monomer (A), a polymer powder (B) comprising 54% by mass or more of a polymer powder (b1) having a volume mean particle diameter of 27 to 80 ?m and a polymerization initiator (C); and a kit for hard tissue repair comprising members in which the components of the monomer (A), the polymer powder (B) and the polymerization initiator (C) contained in this composition for hard tissue repair are encased in three or more divided groups in an optional combination.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 26, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kengo Goto, Shinya Aoki, Takashi Miura, Tetsuya Hamada, Ayako Bando
  • Patent number: 11312815
    Abstract: A polyurethane resin is a reaction product of a polyisocyanate component containing a bis(isocyanatomethyl)cyclohexane with a macropolyol component having a number average molecular weight of above 400 and 5000 or less. The shore A hardness thereof is 80 or less, a temperature at which a storage elastic modulus E? thereof shows 1×106 Pa is 200° C. or more, and a ratio (E?150/E?50) of a storage elastic modulus E?150 at 150° C. with respect to a storage elastic modulus E?50 at 50° C. is 0.1 or more and 1.4 or less.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 26, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Daisuke Hasegawa, Hidetaka Honda, Hiroshi Kanayama, Hirofumi Morita, Satoshi Yamasaki
  • Patent number: D950066
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 26, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Yuki Iwabuchi, Akira Hasegawa