Patents Assigned to Mitsui Chemicals, Inc.
  • LAMINATE
    Publication number: 20220266568
    Abstract: An object of the present invention is to provide a laminate of an olefin-type rubber, which is non-polar or has a small polarity and which is difficult to bond with a different material, and a rubber including Group 16 elements and/or Group 17 elements, which is a different kind of rubber. The laminate according to the present invention includes a structure including, in order, an olefin-type rubber layer (A); an adhesive resin layer (B) containing at least one selected from the group consisting of an ethylene/vinyl acetate copolymer, a silane-modified ethylene/vinyl acetate copolymer, an ethylene/acrylic acid copolymer and an ionomer thereof, and an ethylene/methacrylic acid copolymer and an ionomer thereof; and a rubber layer (C) containing Group 16 elements and/or Group 17 elements.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 25, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yoshiharu KIKUCHI, Kotaro ICHINO
  • Curable composition, coating material, solar cell coating material, solar cell back sheet coating material, adhesive, solar cell adhesive, solar cell back sheet adhesive, producing method of sheet, and curing agent
    Patent number: 11421135
    Abstract: A curable composition includes a blocked isocyanate in which an NCO group of an isocyanate compound having a H6XDI skeleton is blocked by a blocking agent having an O?C—CH—C?O skeleton, a curable functional group-containing fluorine polymer, and an alkoxysilane having a functional group including at least one element of a group 15 element to a group 16 element of the periodic table (excluding oxygen). In the curable composition allowing a titanium oxide to be contained, the molar ratio of the curable functional group to the NCO group is 0.5 to 10; the content ratio of the alkoxysilane with respect to 100 pans by mass of the total amount of the blocked isocyanate and the fluorine polymer is 0.2 to 8 parts by mass; and the content ratio of the titanium oxide with respect to 100 parts by mass of the fluorine polymer is 0 to 200 parts by mass.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: August 23, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kazuyuki Fukuda, Jun Kamada, Takashi Uchida, Hideaki Otsuka, Shinji Tachibana
  • Polymerizable composition for optical material and optical material and plastic lens obtainable from same composition
    Patent number: 11414515
    Abstract: A polymerizable composition for an optical material according to the present invention includes one or two or more compounds selected from the group consisting of component (A): an ester compound having a specific structure and component (B): an ether compound having a specific structure, and a polymerizable compound.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 16, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shinsuke Ito, Koji Suesugi, Masayuki Furuya, Takeshi Nishimura, Mamoru Tanaka
  • METHOD OF MANUFACTURING MONOMER COMPOSITION, RAW MATERIAL COMPOSITION, MONOMER COMPOSITION, CURABLE COMPOSITION, AND MOLDED BODY
    Publication number: 20220249331
    Abstract: A method of manufacturing a monomer composition includes a step of mixing a zinc catalyst (A), an iso(thio)cyanate compound (B) having an iso(thio)cyanate group, and an alcohol compound (C) having a hydroxy group, and at least one of the iso(thio)cyanate compound (B) or the alcohol compound (C) has a (meth)acryloyl group.
    Type: Application
    Filed: August 7, 2020
    Publication date: August 11, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Naoyuki KAKINUMA
  • PROPYLENE-ETHYLENE-alpha-OLEFIN COPOLYMER, POLYPROPYLENE COMPOSITION, AND USE THEREFOR
    Publication number: 20220251260
    Abstract: A propylene-ethylene-?-olefin copolymer satisfying: (I) a content of a propylene-derived constituent unit (i) is 50 to 92 mol %, a content of an ethylene-derived constituent unit (ii) is 5 to 20 mol %, and a content of a C4-20 ?-olefin-derived constituent unit (iii) is 3 to 30 mol %, provided that (i) to (iii) total 100 mol %; (II) an mm fraction calculated by 13C-NMR is 85% or more; (III) 0.9?MOE/(2MO×ME)?1.5 wherein MOE represents a mole fraction of chains of propylene and ethylene and chains of the C4-20 ?-olefin and ethylene in total to the total dyad, MO represents mole fractions of propylene and the C4-20 ?-olefin in total, and ME represents a mole fraction of ethylene; (IV) an MFR is 1 to 3 g/10 minutes; and (V) a melting point measured by DSC is less than 100° C., or no melting peak is observed.
    Type: Application
    Filed: May 28, 2020
    Publication date: August 11, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takahiro MIZUMA, Tatsuya OKU, Nozomi KAMIYA, Kiminori NODA, Tetsuya NAKAMURA, Makoto EGAWA, Yuki KAI, Hiroshi HOYA
  • OPTICAL MATERIAL
    Publication number: 20220252771
    Abstract: An optical material satisfies the following (1) to (3) by a transmittance curve in a case in which the optical material is measured at a thickness of 2 mm, and has a* of from ?4 to 1 and b* of from ?1 to 11 as a hue in a CIE 1976 (L*, a*, b*) color space: (1) the transmittance curve has a maximum value T1 of transmittance at a wavelength of from 400 nm to 445 nm of 65% or more; (2) the transmittance curve has a minimum value T2 of transmittance at a wavelength of from 445 nm to 485 nm of 60% to 90%; and (3) a minimum value of transmittance at a wavelength of from 650 nm to 800 nm is 75% or more, and an average value of transmittance at a wavelength of from 650 nm to 800 nm is 80% or more.
    Type: Application
    Filed: July 31, 2020
    Publication date: August 11, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Nobuo KAWATO, Manami TAKENAKA
  • Thermoplastic elastomer composition having excellent molding appearance and a molded product obtained therefrom
    Patent number: 11407885
    Abstract: The present invention relates to a thermoplastic elastomer composition comprising 10 to 80 parts by mass of polyolefin resin (A), 10 to 80 parts by mass of styrene-based thermoplastic elastomer (B), and 1 to 20 parts by mass of at least partially crosslinked rubber (C) (with the total amount of the components (A), (B) and (C) being 100 parts by mass), wherein the composition has a type D hardness (i.e., the instantaneous value) of 35 or more and 70 or less in accordance with JIS K6253, and relates to a molded thermoplastic elastomer product obtained by molding the composition.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: August 9, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masatoshi Sasaki, Makoto Yaegashi, Kakeru Chigama, Remi Kusumoto
  • Dental polyfunctional monomers and dental hydroxyl group-containing monomers
    Patent number: 11406571
    Abstract: Provided are monomers useful for dental materials that include a compound in which a core and a specific terminal group are bonded to each other directly or via a linking group, wherein the core is a C1-200 polyvalent organic group having a valence of not less than 3 containing an oxygen atom or a nitrogen atom in which an atom bonded to the terminal group or the linking group is the oxygen atom or the nitrogen atom; the terminal group is a specific (meth)acryloyl group-containing group, a (meth)acryloyl group, a C1-20 hydrocarbon group or a hydrogen atom, and the terminal group needs to meet specific requirements; and the linking group is a specific divalent group, and when the compound contains a plurality of linking groups, the linking groups may be the same as or different from each other. Compositions, dental materials and kits are also provided.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: August 9, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yoko Kosugi, Akiko Matsumoto, Kazuhiko Yoshinaga
  • (Meth)acrylate, monomer composition, dental material obtained from composition, and production method thereof
    Patent number: 11407846
    Abstract: Provided are a monomer which can provide a cured product having both high toughness and rigidity, a monomer composition containing the monomer, the monomer composition used as a dental material monomer composition, a dental material composition containing the monomer composition or the dental material monomer composition, a cured product thereof having excellent mechanical properties, a dental material formed by curing the dental material composition, a method for producing the monomer composition, and a method for producing the dental material. A (meth)acrylate (D) is a reaction product of an amine compound (A) having two or more amino groups, an iso(thio)cyanate compound (B) having two or more iso(thio)cyanato groups, and a hydroxy (meth)acrylate compound (C) having one or more polymerizable groups.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 9, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventor: Naoyuki Kakinuma
  • COOLING DEVICE AND STRUCTURE
    Publication number: 20220247003
    Abstract: A cooling device including: a resin flow path which is provided with a space portion serving as a flow path in at least one surface; a metal cooling panel for cooling a heating element, which covers the space portion and of which at least a part is in contact with the resin flow path; and a resin bonding member for bonding the resin flow path and the metal cooling panel, in which the metal cooling panel has a fine uneven structure at least on a surface of a bonding portion with the resin bonding member, and the metal cooling panel and the resin bonding member are bonded by allowing a part of the resin bonding member to enter into the fine uneven structure.
    Type: Application
    Filed: June 12, 2020
    Publication date: August 4, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kazuki KIMURA, Takahiro TOMINAGA, Mizue KURIYAGAWA, Tomoki TORII, Kyohei NOMOTO
  • MELT-BLOWN NONWOVEN FABRIC, FILTER AND METHOD OF MANUFACTURING MELT-BLOWN NONWOVEN FABRIC
    Publication number: 20220243372
    Abstract: A melt-blown nonwoven fabric includes polybutylene terephthalate, in which an intrinsic viscosity of the melt-blown nonwoven fabric is 0.45 dl/g or more and 0.60 dl/g or less.
    Type: Application
    Filed: June 2, 2020
    Publication date: August 4, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takashi HASHIMOTO, Kozo IIBA
  • Piezoelectric substrate, piezoelectric textile, piezoelectric fabric, piezoelectric device, force sensor, actuator, and biological information acquisition device
    Patent number: 11402282
    Abstract: Provided is a piezoelectric substrate including: an elongate conductor; and an elongate first piezoelectric material helically wound in one direction around the conductor, in which the first piezoelectric material includes an optically active helical chiral polymer (A), the lengthwise direction of the first piezoelectric material and the principal orientation direction of the helical chiral polymer (A) included in the first piezoelectric material are substantially parallel to each other, and the first piezoelectric material has an orientation degree of F. in a range of from 0.5 to less than 1.0, determined from X-ray diffraction measurement by the following Formula (a): orientation degree F.=(180°??)/180°??(a) (in Formula (a), ? represents a half width of a peak derived from orientation).
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 2, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Mitsunobu Yoshida, Kazuhiro Tanimoto, Katsuki Onishi, Shigeo Nishikawa
  • Frame component, temple, frame, and eyewear
    Patent number: 11402668
    Abstract: This frame component constituting a frame of eyewear is provided with: a housing having a first surface that has a first recess portion formed therein, and a first hole that opens to the first recess portion; a first device disposed in the first recess portion; and a fastening member inserted into the first hole and fixing the first device to the housing. Through this configuration, a frame component is provided which can reduce the thickness dimension of a portion in which a device is provided.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 2, 2022
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Ryuki Kan, Takafumi Ohto, Osamu Masuda
  • TACTILE SENSOR FORMED ON POLYIMIDE THIN FILM HAVING HIGH TOTAL LIGHT TRANSMITTANCE, AND SWITCHING DEVICE USING SAME
    Publication number: 20220239296
    Abstract: A light, flexible, and tough thin film having high total light transmittance that can be formed on various three dimensional shapes, and also provides a stably driven tactile sensor, which is an electronic device having the switching function thereof, is provided. The tactile sensor is formed on a polyimide thin film having high total light transmittance, thermal resistance, and a polar component of surface free energy with a specific value, and has a switching device that emits a voltage signal which, through an electronic circuit for controlling noise, stably drives another device. This tactile sensor has a curved or flat surface and has a first electrode, a ferroelectric layer, and a second electrode formed over the polyimide thin film. The switching device as a tactile sensor can drive another device merely by a light touch with a finger, and can be manufactured at a high non-defective rate.
    Type: Application
    Filed: June 15, 2020
    Publication date: July 28, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Jun OKABE, Tadahiro SUNAGA, Shizuo TOKITO, Tomohito SEKINE
  • Electroconductive resin composition, method for manufacturing same and molded article obtained therefrom
    Patent number: 11396564
    Abstract: The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 ?m or less.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 26, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hirotaka Kanaya, Kuniaki Kawabe, Yosuke Takahashi, Koji Matsunaga
  • LITHIUM BORATE COMPOUND, ADDITIVE FOR LITHIUM SECONDARY BATTERY, NONAQUEOUS ELECTROLYTIC SOLUTION FOR LITHIUM SECONDARY BATTERY, PRECURSOR FOR LITHIUM SECONDARY BATTERY, AND PRODUCTION METHOD FOR LITHIUM SECONDARY BATTERY
    Publication number: 20220231336
    Abstract: A lithium borate compound represented by the following Formula (I). In Formula (I), each of R1, R2, and R3 independently represents a hydrocarbon group having from 1 to 20 carbon atoms, which may have a substituent. R10 represents a fluorine atom, a hydrocarbon-oxy group having from 1 to 10 carbon atoms, a hydrocarbon group having from 1 to 10 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 10 carbon atoms.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 21, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kenichi GOTO, Shigeru MIO, Satoko FUJIYAMA, Kei SUGAWARA, Mitsuaki CHIDA
  • SENSOR, DETECTION METHOD, AND SENSOR MANUFACTURING METHOD
    Publication number: 20220228898
    Abstract: A sensor includes a body member, a volume change body, and a detection member. The body member has a flat plate-like shape, a first end in a first direction being supported, and a storage space opening at at least one of both end faces in a thickness direction. The volume change body, whose volume changes depending on an amount of a target, is supported by the body member so that at least a part of the volume change body is stored in the storage space. The detection member is in contact with a second end in the first direction of the body member, and detects stress caused by the change in the volume of the volume change body.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 21, 2022
    Applicants: MITSUI CHEMICALS, INC., TOHOKU UNIVERSITY
    Inventors: Takahito Ono, Masaya Toda, Mai Kurihara
  • CYCLIC OLEFIN-BASED RESIN COMPOSITION, MOLDED PRODUCT, AND OPTICAL COMPONENT
    Publication number: 20220227896
    Abstract: Provided is a cyclic olefin-based resin composition including a cyclic olefin-based polymer (A), and a hindered amine compound (Y) that contains a piperidyl group represented by General Formula (1) and a carboxylic acid amide group represented by General Formula (2) within the same molecule.
    Type: Application
    Filed: May 14, 2020
    Publication date: July 21, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masakatsu KASUYA, Kouichi KIZU, Yasuyuki SOEDA, Takayuki OKUNO, Hisahiro KATO, Keisuke ENDO
  • Polycarbodiimide composition, method for producing a polycarbodiimide composition, water-dispersed composition, solution composition, resin composition, and cured resin
    Patent number: 11390751
    Abstract: The polycarbodiimide composition is a reaction product of polyisocyanate having a primary isocyanate group with alcohol, wherein the alcohol contains at least one oxyethylene-containing alcohol containing an oxyethylene group, and at least one oxyethylene-noncontaining alcohol containing no oxyethylene group, the at least one oxyethylene-noncontaining alcohol has a solubility parameter of 11.20 (cal/cm3)1/2 or less.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 19, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tatsuya Yamashita, Toshihiko Nakagawa, Shinji Kiyono, Kazuki Sakata, Hirokazu Morita, Shigeru Mio, Satoshi Yamasaki
  • Aqueous dispersion and laminate
    Patent number: 11390781
    Abstract: An aqueous dispersion contains a resin component and water, wherein the resin component contains composite particles (D) having the ethylene-unsaturated carboxylic acid copolymer (A) and the polymer having an acrylic acid ester unit as a polymerization unit (B), and composite particles (E) having the ethylene-unsaturated carboxylic acid copolymer (A) and the ethylene-vinyl acetate copolymer (C).
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: July 19, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventor: Junichi Nakagawa