Patents Assigned to Mitsui Chemicals, Inc.
  • Polypropylene resin composition and monolayer and multilayer film
    Patent number: 11492471
    Abstract: A propylene polymer satisfying (a) below, a soft propylene copolymer satisfying (b) below, and a polyolefin containing a structural unit derived from an unsaturated carboxylic acid and/or a derivative thereof, wherein (a) a melting point is 100° C. or more, and (b) an MFR is in the range of 0.01 to 100 g/10 min, at least one of the following requirements (b-1) and (b-2) is satisfied: (b-1) a syndiotactic triad fraction s 60% or more, and (b-2) a structural unit derived from propylene is 55 to 90 mol % and a structural unit derived from at least one olefin having 2 to 20 carbon atoms (excluding propylene) is contained at 10 to 45 mol % (with provisos), and the relation between an intrinsic viscosity [?] (dL/g) and the MFR satisfies the relation: 1.50×MFR?0.20?[?]?2.65×MFR?0.20.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 8, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Akihiko Iwashita, Shigeyuki Yasui
  • 4-methyl-1-pentene polymer particle and method for producing 4-methyl-1-pentene resin
    Patent number: 11485815
    Abstract: A 4-methyl-1-pentene polymer particle (X) which satisfies the following requirements (X-a), (X-b) and (X-c): (X-a) being composed of a 4-methyl-1-pentene polymer which has a content of a constitutional unit derived from 4-methyl-1-pentene being 30.0 to 99.7% by mol, and a content of a constitutional unit derived from at least one olefin selected from ethylene and an ?-olefin having 3 to 20 carbon atoms (except for 4-methyl-1-pentene) being 0.3 to 70.0% by mol; (X-b) having, when measured in a cross fractionation chromatograph apparatus (CFC) using an infrared spectrophotometer as a detector part, at least one peak A of an amount of a component eluted present in the range of 100 to 140° C., and at least one peak B of an amount of a component eluted present at lower than 100° C.; and (X-c) having a meso diad fraction (m) measured by 13C-NMR falling within the range of 95.0 to 100%.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: November 1, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masakazu Tanaka, Toyoaki Sasaki, Tomoaki Matsugi, Sadahiko Matsuura, Naoto Matsukawa, Masatoshi Chinaka
  • Semiconductor element intermediate, composition for forming metal-containing film, method of producing semiconductor element intermediate, and method of producing semiconductor element
    Patent number: 11487205
    Abstract: Provided are a semiconductor element intermediate including: a substrate and a multilayer resist layer, in which the multilayer resist layer includes a metal-containing film, and in which the metal-containing film has a content of germanium element of 20 atm % or more, or a total content of tin element, indium element, and gallium element of 1 atm % or more, as measured by X-ray photoelectric spectroscopy, and an application of the semiconductor intermediate.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: November 1, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hiroko Wachi, Yasuhisa Kayaba, Hirofumi Tanaka, Kenichi Fujii
  • MATERIAL FOR 3D PRINTING, 3D PRINTED OBJECT, AND METHOD OF MANUFACTURING 3D PRINTED OBJECT
    Publication number: 20220340742
    Abstract: A material for 3D printing includes a thermoplastic resin, a thermoplastic elastomer, and a filler. The filler includes talc. A content of the filler is 5% by mass or more and 70% by mass or less with respect to a total mass of the material for 3D printing.
    Type: Application
    Filed: September 23, 2020
    Publication date: October 27, 2022
    Applicants: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Yuki KONDO, Tomoaki ITO, Fumito TAKEUCHI, Pingfan CHEN
  • PHOTOCURABLE COMPOSITION AND DENTAL PRODUCT
    Publication number: 20220339077
    Abstract: A photocurable composition includes a (meth)acrylic monomer component and a photopolymerization initiator, wherein an adhesive force of a cured product is less than or equal to 1.5 N, and a rupture elongation of the cured product is greater than or equal to 20%.
    Type: Application
    Filed: October 28, 2020
    Publication date: October 27, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Suguru ENDO, Toshikazu SAKAMAKI, Mai KIMURA, Hiroki MURAI, Takaaki HAYASHI
  • DISPLAY DEVICES
    Publication number: 20220332927
    Abstract: A display device that includes a display element including a light source, and a surface film disposed so as to overlap with the display element and including a thermoplastic elastomer composition, the thermoplastic elastomer composition satisfying conditions (1) and (2) below, and the surface film satisfying conditions (3) and (4) below: (1) The melt flow rate (ASTM D1238, 230° C., 2.16 kg load; MFR) is not less than 30 g/10 min. (2) The type A hardness (momentary value) measured by a method in accordance with JIS K6253 is 60 to 90. (3) The thickness is not less than 300 ?m and not more than 2 mm. (4) The total light transmittance measured by a method in accordance with JIS K7361 is 3 to 60%.
    Type: Application
    Filed: September 14, 2020
    Publication date: October 20, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hayato KURITA, Kan KOMIYA
  • Polymerizable composition for optical material and optical material and plastic lens obtained from same composition
    Patent number: 11474280
    Abstract: The polymerizable composition for an optical material of the present invention includes a compound (A) represented by General Formula (a) and including two or more allyloxycarbonyl groups, at least one kind of radical polymerization initiator (B) selected from the group consisting of a peroxyketal-based radical polymerization initiator, a peroxymonocarbonate-based radical polymerization initiator, and a peroxyester-based radical polymerization initiator, and a modifier (C) selected from a polyether modified siloxane compound represented by General Formula (c1) or a polyol compound represented by General Formula (c2).
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: October 18, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tatsuya Ogawa, Masayuki Furuya, Shinsuke Ito
  • Simulated eyeball, device for training in ophthalmic surgery, and method for training in ophthalmic surgery
    Patent number: 11475797
    Abstract: A simulated eyeball for training in ophthalmic surgery includes a simulated sclera region that constitutes a simulated sclera, and a conductor layer that is formed on a side of the simulated sclera region that is on an interior of the simulated eyeball, the conductor layer forming a simulated choroid region.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 18, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Seiji Omata, Fumihito Arai
  • Polymerizable composition for optical material, optical material, and application thereof
    Patent number: 11472943
    Abstract: A polymerizable composition for an optical material includes a compound represented by General Formula (1) and a polymerization reactive compound.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 18, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shinsuke Ito, Kouji Suesugi
  • Method of producing substrate with fine uneven pattern, resin composition, and laminate
    Patent number: 11474429
    Abstract: A method of producing a substrate with a fine uneven pattern is a method of producing a substrate having a fine uneven pattern on a surface thereof, the method including a step (a) of preparing a laminate provided with a substrate and a first resin layer provided on the substrate and having a first fine uneven pattern formed on a surface thereof; and a step (b) of forming a second fine uneven pattern corresponding to the first fine uneven pattern on the surface of the substrate by etching the surface of the first fine uneven pattern using the first resin layer as a mask, in which the first resin layer is formed of a resin composition (P) including a fluorine-containing cyclic olefin polymer (A) or a cured product of the resin composition (P).
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: October 18, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Oda, Hisanori Ohkita, Yasuhisa Kayaba
  • THERMOPLASTIC ELASTOMER COMPOSITION AND THERMOPLASTIC ELASTOMER MOLDED BODY
    Publication number: 20220315748
    Abstract: A thermoplastic elastomer composition: 41 to 70 parts by mass of component (A), 0 to 54 parts by mass of component (B), and 5 to 59 parts by mass of component (C) ((A), (B), and (C) being 100 parts by mass), with dynamic heat treatment with a cross-linking agent. Component (A): a propylene block copolymer having a melt flow rate measured in accordance with ISO1133. Component (B): an ethylene/?-olefin/non-conjugated polyene copolymer including a structural unit derived from ethylene, a structural unit derived from an ?-olefin having 3 to 20 carbon atoms, and a structural unit derived from a non-conjugated polyene. Component (C): an ethylene/?-olefin copolymer including a structural unit derived from ethylene and a structural unit derived from an ?-olefin having 4 to 20 carbon atoms and having a melt flow rate measured in accordance with ISO 1133.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 6, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Ryo ISHIKAWA, Ryosuke ABURAKI, Remi KUSUMOTO
  • Piezoelectric substrate attachment structure and sensor module
    Patent number: 11462673
    Abstract: A piezoelectric substrate attachment structure including a cable-shaped piezoelectric substrate, a press section provided adjacent to the piezoelectric substrate and pressed from an opposite side from the piezoelectric substrate, and a base section provided adjacent to the piezoelectric substrate on an opposite side from the press section. A ratio Eb/Ea of a Young's modulus Eb of the base section to a Young's modulus Ea of the press section being 10?1 or lower.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: October 4, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Mitsunobu Yoshida, Kazuhiro Tanimoto, Masahiko Mitsuzuka
  • Resin composition and molded body formed therefrom
    Patent number: 11453768
    Abstract: A novel vinyl chloride resin composition having exceptional transparency is provided. This resin composition comprises 3-15 parts by mass of a rubbery impact-absorbing material (B) for which the glass transition point in differential scanning calorimetry does not exceed 0° C., and 0.1-10 parts by mass of a lubricant (C) that satisfies (i)-(iv) below, the content amounts above being indicated relative to 100 parts by mass of a vinyl chloride resin (A) having a chlorine content of 55-75 mass %. (i) The melt viscosity at 200° C. is 5-5,000 mPa·s (ii) The softening point is in the range of 60?180° C. (iii) The glass transition point (Tg) as measured in DSC is in the range of 0?100° C.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: September 27, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hirotaka Kanaya, Kuniaki Kawabe, Yosuke Takahashi, Koji Matsunaga
  • POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, OPTICAL MATERIAL, AND USE THEREOF
    Publication number: 20220289945
    Abstract: A polymerizable composition for an optical material of the present disclosure includes (A) an isocyanate compound, (B) at least one active hydrogen compound selected from the group consisting of a polythiol compound having two or more mercapto groups, a hydroxythiol compound having one or more mercapto groups and one or more hydroxyl groups, a polyol compound having two or more hydroxyl groups, and an amine compound, and (C) an ultraviolet absorber represented by General Formula (1).
    Type: Application
    Filed: February 7, 2020
    Publication date: September 15, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masaru KAWAGUCHI, Shinsuke ITO
  • METHOD OF MANUFACTURING OPTICAL MEMBER, AND OPTICAL MEMBER
    Publication number: 20220288817
    Abstract: A method of manufacturing an optical member by curing a thermally polymerizable composition by heating includes, in the following order: a first step of filling an inside of a mold with the thermally polymerizable composition in which the mold is configured by disposing a frame-shaped member, with a Young's modulus of 1.0 GPa or more at a polymerization initiation temperature of the thermally polymerizable composition, between two mold members facing each other; and a second step of heating the mold to the polymerization initiation temperature or more.
    Type: Application
    Filed: September 16, 2020
    Publication date: September 15, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Shinsuke ITO, Nigel RIBEIRO
  • Method for identifying drug-discovery target protein for development of antibody drug, and method for producing antibody against target protein
    Patent number: 11442066
    Abstract: Finding a protein of a minute amount present on a cell membrane to provide a method for producing an antibody against the protein. Producing an antibody using a protein identified by an identification method including: a labeling step of using a labeling agent comprising at least one selected from bis-iminobiotin compounds and bis-biotin compounds to obtain cells having a labeled protein; a degradation step of preparing a degradation product for an immobilization treatment, the degradation product containing the labeled protein; an immobilization step of immobilizing the labeled protein contained in the degradation product for an immobilization treatment on a stationary phase via a streptavidin mutant; a cleavage step of releasing an analysis sample from the stationary phase on which the labeled protein is immobilized; and an analysis step of analyzing the analysis sample to identify the labeled protein.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: September 13, 2022
    Assignees: MITSUI CHEMICALS, INC, NATIONAL INSTITUTES OF BIOMEDICAL INNOVATION HEALTH AND NUTRITION, SAVID THERAPEUTICS INC.
    Inventors: Tsuneji Suzuki, Yoshiyuki Totani, Kosuke Mano, Shinichi Banba, Haruhiko Kamada, Taisuke Nakayama, Hiroki Akiba, Kouhei Tsumoto, Tsuyoshi Inoue
  • HEATING ELEMENT ACCOMMODATION CASE AND STRUCTURE
    Publication number: 20220282933
    Abstract: A heating element accommodation case, comprising a casing to accommodate a heating element, the casing having a flow channel configured for a liquid to flow through, a portion of the flow channel being formed of a resin; and a heating element accommodation case, comprising a casing to accommodate a heating element and an airflow channel configured for air to flow through.
    Type: Application
    Filed: September 30, 2020
    Publication date: September 8, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kazuki KIMURA, Mizue KURIYAGSWA, Tomoki TORII, Yasuyuki OKUMURA, Norihide TOBA, Takashi NAKATA
  • CYCLIC OLEFIN-BASED COPOLYMER COMPOSITION, VARNISH, AND CROSS-LINKED PRODUCT
    Publication number: 20220275135
    Abstract: A cyclic olefin-based copolymer resin composition includes a cyclic olefin-based copolymer (M); and a maleimide compound (L), in which the cyclic olefin-based copolymer (M) includes a cyclic olefin-based copolymer (m) including a repeating unit represented by a specific general formula, the maleimide compound (L) has a solubility parameter (SP value) obtained by Fedors method of 19J1/2/cm3/2 or more and 26J1/2/cm3/2 or less and includes a maleimide compound (1), which is a bismaleimide compound having at least two maleimide groups in a molecule, and when a total of the cyclic olefin-based copolymer (M) and the maleimide compound (L) is 100 parts by mass, a content of the maleimide compound (L) is 1 part by mass or more and 50 parts by mass or less.
    Type: Application
    Filed: November 22, 2019
    Publication date: September 1, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hirohiko MURASE, Koutarou ASAHINA, Fumito TAKEUCHI
  • URETHANE ALLYL COMPOUND, MONOMER COMPOSITION, MOLDED BODY, COMPOSITION FOR DENTAL MATERIAL, AND DENTAL MATERIAL
    Publication number: 20220275125
    Abstract: A urethane allyl compound having a urethane bond and an allyloxy group.
    Type: Application
    Filed: August 11, 2020
    Publication date: September 1, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Naoyuki KAKINUMA
  • LAMINATED BODY, METHOD OF MANUFACTURING LAMINATED BODY, ANTIFOGGING FILM FORMING COMPOSITION, ANTIFOGGING FILM, AND SET OF ANTIFOGGING FILM FORMING COMPOSITIONS
    Publication number: 20220276410
    Abstract: A laminated body including: a substrate; a storage layer; and a buffer layer disposed in this order, in which the storage layer is formed of a cured product of a composition containing a polyfunctional monomer (a1), inorganic particles (a2), and a surfactant (a3), the buffer layer is formed of a cured product of a composition containing a polyfunctional monomer (b1) and inorganic particles (b2), a content mass of the inorganic particles (a2) is 30% by mass or more, a content mass of the inorganic particles (b2) is 30% by mass or more, and the polyfunctional monomer (a1) and the polyfunctional monomer (b1) contain a polyfunctional monomer having a molecular weight per epoxy group in one molecule of 200 g/mol or more.
    Type: Application
    Filed: February 21, 2022
    Publication date: September 1, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Makoto WATANABE