Patents Assigned to Mitsubishi Gas Chemical Company, Inc.
  • Patent number: 11472906
    Abstract: An active energy ray-curable resin composition containing: a reaction product (X) of a component (A) and a component (B) below: (A) at least one selected from the group consisting of meta-xylylenediamine and para-xylylenediamine; (B) at least one selected from the group consisting of unsaturated carboxylic acids represented by the following general formula (1) and derivatives of the unsaturated carboxylic acids: wherein, in the formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, an aryl group having from 6 to 12 carbon atoms, or an aralkyl group having from 7 to 13 carbon atoms; (C) a compound having at least one group selected from the group consisting of a glycidyl group and an isocyanate group, and an ethylenically unsaturated bond-containing group; and (D) a phosphoric acid derivative having an ethylenically unsaturated bond-containing group.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 18, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Ryoma Hashimoto, Kazuki Kouno
  • Publication number: 20220325034
    Abstract: A curable composition is provided that includes an alkenyl phenol A, an epoxy-modified silicone B, an epoxy compound C other than the epoxy-modified silicone B, and a thermosetting resin E, in which the thermosetting resin E contains one or more selected from the group consisting of a maleimide compound, a cyanate ester compound, a phenolic compound, an alkenyl-substituted nadimide compound, and an epoxy compound.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 13, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Katsuya TOMIZAWA, Mayumi KIKUCHI, Hidetoshi KAWAI
  • Publication number: 20220325224
    Abstract: A gas concentration regulator for use in culture of anaerobic bacteria, including: (a) dehydroascorbic acid; (c) a transition metal catalyst; (d) activated carbon; (e) at least one selected from the group consisting of an alkali metal carbonate, an alkali metal hydroxide, and an alkaline earth metal hydroxide; and (f) water.
    Type: Application
    Filed: June 8, 2020
    Publication date: October 13, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Tatsuya CHINZEI, Masao SOMEYA
  • Publication number: 20220325419
    Abstract: Provided are an aqueous composition with which the surface of stainless steel is adequately roughened in an efficient manner with few steps, a method for roughening stainless steel, etc. The problem mentioned above is solved by an aqueous composition for roughening the surface of stainless steel, the aqueous composition including 0.1-20 mass % of hydrogen peroxide with reference to the total amount of the aqueous composition, 0.25-40 mass % of copper ions with reference to the total amount of the aqueous composition, and 1-30 mass % of halide ions with reference to the total amount of the aqueous composition.
    Type: Application
    Filed: June 3, 2020
    Publication date: October 13, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuhiko IKEDA, Tomoko FUJII, Hiroshi MATSUNAGA, Satoshi TAMAI
  • Patent number: 11466120
    Abstract: A medical material comprising film obtained from a polyester wherein the polyester has a weight average molecular weight of 1,250,000 or greater determined by gel permeation chromatography calibrated with polystyrene standards. The polyester comprises a 3-hydroxybutyrate unit and a 4-hydroxybutyrate unit as polymerization units, and proportion of the 4-hydroxybutyrate unit relative to all monomer units is from 14 mol % to 40 mol %. The polyester film is useful for medical apparatus, packaging material for food, plastic sheet for agriculture, flowerpots for seedings, and sheets for construction and engineering.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Akira Maehara
  • Patent number: 11466132
    Abstract: A sheet formed from carbon fiber reinforced thermoplastic resin with high heat resistance, and a production method of said sheet is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a constituent unit derived from a dihydric phenol represented by formula (1), and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R1-R4 independently represent a hydrogen, a halogen, a nitro, or a methyl group; X represents a divalent group represented by any of formulas (2) to (4).
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Genki Sugiyama, Kohei Yoshiya, Hidetaka Shimizu, Shun Ishikawa, Hiroyoshi Maruyama
  • Patent number: 11466123
    Abstract: The resin composition of the present invention is a resin composition containing: a bismaleimide compound (A) containing a constituent unit represented by the following formula (1) and maleimide groups at both ends of the molecular chain; a compound (B) containing one or more carboxy groups; and a photo initiator (C). In the formula (1), R1 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. R2 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. Each R3 independently represents a hydrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, or a linear or branched alkenyl group having 2 to 16 carbon atoms. Each n independently represents an integer of 1 to 10.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yune Kumazawa, Takuya Suzuki, Seiji Shika, Shunsuke Katagiri
  • Patent number: 11465370
    Abstract: Provided are: a method for manufacturing a molded article having high compressive strength and excellent appearance by compressing a shaped article obtained using a 3D printer, and a material containing another resin; and a manufacturing device for the same. The method for manufacturing a molded article includes: shaping a filament containing a resin and continuous reinforcing fibers using a 3D printer; and manufacturing a molded article by compressing a second material containing resin against a shaped article formed by the shaping, wherein the shaped article has a void ratio of from 5 to 30%.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: October 11, 2022
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Shogo Mishima, Nobuki Hirooka, Nobuhiko Matsumoto
  • Publication number: 20220315694
    Abstract: Provided is an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, wherein a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.10 to 3.0. Also provided are a gas barrier film and a laminate in which the epoxy resin composition is used.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 6, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Ryoma HASHIMOTO
  • Publication number: 20220306802
    Abstract: Provided is a polycarbonate resin having excellent solubility in low-boiling-point non-halogenated solvents and having a high glass transition temperature. The polycarbonate resin includes constituent units (A) represented by general formula (1) and constituent units (B) represented by general formula (2), the molar ratio of the constituent units (A) to the constituent units (B), A/B, being 45/55 to 95/5.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 29, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Toshihito GOTO, Noriyoshi OGAWA
  • Publication number: 20220298300
    Abstract: The present application addresses the problem of providing a new method for producing a polycarbonate resin having excellent properties. This problem has been solved by providing a method for producing a polycarbonate resin containing a constituent unit derived from an aromatic dihydroxy compound represented by formula (1). The method includes polymerizing the aromatic dihydroxy compound represented by formula (1). During the polymerization, a raw material substance is used in which the concentration of compounds represented by formula (2), which are impurities, is 80 ppm or less relative to the total weight of the aromatic dihydroxy compound represented by formula (1) and the compounds represented by formula (2). (In formula (1) and formula (2), R1 to R3, X, a, b, m and n are as described in the description of the present application.
    Type: Application
    Filed: September 15, 2020
    Publication date: September 22, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Shun ISHIKAWA
  • Patent number: 11447658
    Abstract: The resin composition of the present invention contains a maleimide compound (A) represented by the following formula (1); and a photo initiator (B) having an absorbance of 0.1 or more at a wavelength of 405 nm (h-line). In the formula (1), R1, R2, and R3 each independently represent an alkyl group or an alkoxy group which may have a hydrogen atom, a halogen atom, a hydroxyl group, or a substituent, R4 represents an alkylene group, an alkenylene group, an alkoxylene group, or an arylene group which may have a substituent, and R5 and R6 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms, or a linear or branched alkenyl group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: September 20, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Shunsuke Katagiri, Takuya Suzuki, Seiji Shika, Yune Kumazawa
  • Patent number: 11446899
    Abstract: Provided is a transparent film having advantages such as excellent heat resistance, a birefringence that is not easily affected by the film forming conditions, and being uniform. According to one embodiment, there is provided a transparent film including a resin composition that includes a polycarbonate resin (A) having a structural unit represented by formula (1) and having a photoelastic coefficient of 80×10?12 m2/N or less.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 20, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Nobuhiko Kusumoto, Keisuke Konomi, Madoka Yamaguchi
  • Patent number: 11447632
    Abstract: An easily tearable film includes polyamide resin components including more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol % or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol % or more of the dicarboxylic acid-derived constituent units are derived from an ?,?-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; and the molar concentration of phosphorus atoms, the total molar concentration of alkali metal atoms and the total molar concentration of alkaline earth metal atoms, and Mn of the semi-aromatic polyamide resin satisfy predetermined relationships.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 20, 2022
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Kosuke Otsuka, Takafumi Oda
  • Publication number: 20220289905
    Abstract: The present application provides a polycarbonate-based coating resin composition which exhibits high adhesiveness. The above are achieved by a polycarbonate resin composition which contains (A) a polycarbonate resin that contains a constituent unit represented by general formula (1) and a terminal structure represented by general formula (2) and (B) a polyisocyanate compound, wherein 0.1% by mass or more of the polyisocyanate compound (B) is contained on the basis of the total mass of the polycarbonate resin (A) and the polyisocyanate compound (B). (In formula (1) and formula (2), R1 to R3, X, m and n are as defined in the description.
    Type: Application
    Filed: September 3, 2020
    Publication date: September 15, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Kohei YOSHIYA
  • Publication number: 20220289579
    Abstract: The objective of the present invention is to provide a method for producing a halogenated carbonyl safely and efficiently. The method for producing a halogenated carbonyl according to the present invention is characterized in comprising the step of applying ultrasound to a composition containing a C1-4 halogenated hydrocarbon having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo in the presence of oxygen to decompose the C1-4 halogenated hydrocarbon.
    Type: Application
    Filed: September 2, 2020
    Publication date: September 15, 2022
    Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Akihiko TSUDA
  • Publication number: 20220289906
    Abstract: The present application provides a polycarbonate-based coating resin composition having high adhesiveness, more specifically provides a polycarbonate resin composition that contains not less than 0.1 parts by mass of a polyisocyanate compound and 100 parts by mass of a terminal-modified polycarbonate resin (A) having a structural unit (2) and a terminal structure represented by structural formula (1). [In formula (1) and formula (2), R1-R7, X, Y, Z, and a are as described in the description.
    Type: Application
    Filed: September 1, 2020
    Publication date: September 15, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kohei YOSHIYA, Noriyoshi OGAWA
  • Publication number: 20220289975
    Abstract: A polyimide resin composition containing a polyimide resin (A) and a fluororesin (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the fluororesin (B) has a weight loss percentage measured using a differential scanning calorimeter after heating from 100° C. to 450° C. at a heating rate of 10° C.
    Type: Application
    Filed: June 22, 2020
    Publication date: September 15, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Atsushi SAKAI, Yuuki SATO
  • Patent number: 11441098
    Abstract: A fragrance composition comprising a compound represented by Formula (1): wherein, in Formula (1), R represents a linear, branched, or cyclic alkyl group having 2 to 6 carbon atoms.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: September 13, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Atsushi Okamoto, Eriko Kushida, Umi Yokobori, Kyoko Kimura
  • Patent number: 11441109
    Abstract: The present invention can provide a cleaning solution containing 0.2-20 mass % of an amine compound (A), 40-70 mass % of a water-soluble organic solvent (B), and water, wherein the amine compound (A) contains at least one selected from the group consisting of n-butylamine, hexylamine, octylamine, 1,4-butanediamine, dibutylamine, 3-amino-1-propanol, N,N-diethyl-1,3-diaminopropane, and bis(hexamethylene)triamine, and the water-soluble organic solvent (B) has a viscosity of 10 mPa·s or less at 20° C. and a pH of 9.0-14.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: September 13, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Takahiro Kikunaga, Hiroaki Horie, Kimihiro Aoyama, Nobuo Tajima