Patents Assigned to Mitsui Chemicals, Inc.
  • Publication number: 20200325255
    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: Application
    Filed: November 27, 2018
    Publication date: October 15, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Naoyuki KAKINUMA
  • Patent number: 10800909
    Abstract: Provided are a propylene homopolymer composition for a capacitor film, from which a thin film can be easily produced and which can provide a film with excellent high-temperature voltage resistance, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 1% by mass or more and less than 50% by mass of a propylene homopolymer (A1) having predetermined characteristics and more than 50% by mass and 99% by mass or less of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 13, 2020
    Assignees: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventor: Katsutoshi Ohta
  • Patent number: 10793666
    Abstract: A polyisocyanate composition includes an isocyanurate derivative of xylylene diisocyanate, and a biuret derivative of aliphatic polyisocyanate.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 6, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shirou Honma, Kazuyuki Fukuda, Hideaki Otsuka, Tsutomu Yoshida, Toshiaki Moriya, Tatsuya Nakashima
  • Patent number: 10793708
    Abstract: Provided are a propylene homopolymer composition for a capacitor film, which can provide a film with excellent high-temperature voltage resistance and excellent thin-film stretchability, a method for producing the same, and a capacitor film. The propylene homopolymer composition for a capacitor film contains 50 to 99% by mass of a propylene homopolymer (A1) having predetermined characteristics and 1 to 50% by mass of a propylene homopolymer (B1) having predetermined characteristics, and has (i) a melt flow rate (MFR) of 1.0 to 10.0 g/10 min and (ii) a chlorine content of 2 ppm by mass or less.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 6, 2020
    Assignees: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventor: Katsutoshi Ohta
  • Publication number: 20200308400
    Abstract: Provided is a polymerizable composition for an optical material including: a polyisocyanate component which includes 1,4-bis(isocyanatomethyl)cyclohexane; a polyol component which includes a diol compound having a molecular weight of 400 or more and having two or more hydroxyl groups; and a polythiol component which includes a polythiol compound having two or more mercapto groups.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Takayuki HANAWA
  • Publication number: 20200308628
    Abstract: Provided is a primer pair of primers for methicillin-resistant gene detection for the purpose of achieving highly sensitive methicillin-resistant gene detection. Said primer pair comprises a combination of SEQ ID NO: 3 and SEQ ID NO: 7, a combination of SEQ ID NO: 2 and SEQ ID NO: 9, a combination of SEQ ID NO: 1 and SEQ ID NO: 8, a combination of SEQ ID NO: 1 and SEQ ID NO: 9, a combination of SEQ ID NO: 4 and SEQ ID NO: 11, a combination of SEQ ID NO: 5 and SEQ ID NO: 12, a combination of SEQ ID NO: 6 and SEQ ID NO: 10, or a combination of SEQ ID NO: 6 and SEQ ID NO: 12.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 1, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koh AMANO, Ayako ENDO, Hisaaki YANAI, Kentaro TSUJI, Takashi MORISHIGE
  • Publication number: 20200308336
    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. R4 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 m is 2 or less.
    Type: Application
    Filed: November 7, 2018
    Publication date: October 1, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Toshihiro TANAKA, Hiroshi KANAYAMA, Minoru WATANABE, Hiroki INOUE, Junji SAITO
  • Publication number: 20200291157
    Abstract: An object of the present invention is to provide a curable composition having sufficient polymerization properties even under acidic conditions. The curable composition of the present invention includes (a) a polymerizable monomer having an acidic group, (b) a transition metal compound, (c) at least one compound selected from benzoxazole compounds and benzothiazole compounds, and (d) a reducing agent.
    Type: Application
    Filed: October 25, 2018
    Publication date: September 17, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takenori MITAMURA, Yoko KOSUGI
  • Patent number: 10774038
    Abstract: A process for producing cyanonorbornene of the present invention includes Step 1 of preparing a mixture solution including 0.5% by weight to 28% by weight of methyl bicyclononadiene, with respect to a total amount of 100% by weight of dicyclopentadiene, acrylonitrile, and the methyl bicyclononadiene, in a container, and Step 2 of reacting the bicyclopentadiene with the acrylonitrile in the presence of the methyl bicyclononadiene, in the mixture solution.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 15, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shigetoshi Kuma, Tomoya Sanda
  • Publication number: 20200282709
    Abstract: A resealable packaging container, which is a resealable package including a lid material that uses a multilayer film including three layers in which a substrate layer (A), an intermediate layer (B), and a heat seal layer (C) are laminated in the sequence (A)/(B)/(C); and a bottom material that uses a single-layer or multilayer sheet having an adherend (D) that can adhere to the heat seal layer (C), wherein the substrate layer (A), the intermediate layer (B), and the heat seal layer (C) all include a polyolefin resin, and when the heat seal layer (C) and the adherend (D) are heat-sealed to form a heat seal part, and the multilayer film is subsequently peeled from the heat seal part, the intermediate layer (B) and the heat seal layer (C) are delaminated and exposed in a resealable state.
    Type: Application
    Filed: February 2, 2017
    Publication date: September 10, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tatsuya OKU, Shinya TANAKA, Makoto EGAWA
  • Patent number: 10768443
    Abstract: Provided are electronic eyeglasses including a power supply unit that is less likely to be unfastened and is easily attachable and detachable. A power supply unit is detachably attached to an accommodating chamber in a distal end portion of a temple. The power supply unit includes, from a front end toward a rear end, an electrical connection terminal; a first housing unit that holds a first battery, and that has a side surface having an arc shape in a plan view; a narrow portion that is connected to the arc-shaped side surface, and that has a side surface narrower than the side surface; and a second housing unit that has a side surface connected to the narrow side surface, and that hold a second battery. The accommodating chamber has a protruding portion that is elastically deformed so as to be fitted to the narrow portion of the power supply unit.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 8, 2020
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masayoshi Hino, Ryuki Kan
  • Patent number: 10759964
    Abstract: A composition for forming a film for semiconductor devices including: a compound (A) including a cationic functional group containing at least one of a primary nitrogen atom or a secondary nitrogen atom and having a weight average molecular weight of from 10,000 to 400,000; a crosslinking agent (B) which includes the 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 water (D), in which the compound (A) is an aliphatic amine.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 1, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yasuhisa Kayaba, Hirofumi Tanaka, Hiroko Wachi, Shoko Ono
  • Patent number: 10752805
    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: Grant
    Filed: November 16, 2016
    Date of Patent: August 25, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yasuhisa Kayaba, Hirofumi Tanaka, Koji Inoue
  • Patent number: 10752796
    Abstract: A water-based inkjet ink composition comprising composite resin fine particles composed of a first resin and a second resin, and having an SP value of from 9.0 to 12.0 (cal/cm3)1/2, wherein the SP value of the second resin is higher than the SP value of the first resin, and the first resin has a higher mass than the second resin.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: August 25, 2020
    Assignees: Seiko Epson Corporation, MITSUI CHEMICALS, INC.
    Inventors: Kenichi Seguchi, Tsuyoshi Sano, Miharu Kanaya, Takayoshi Kagata, Akira Mizutani, Toshihiro Yoshimura, Yasuyuki Kagawa
  • Publication number: 20200264511
    Abstract: A material for forming an underlayer film according to the present invention is a material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the material including a cyclic olefin polymer which has a repeating structural unit [A] represented by Formula (1) and a repeating structural unit [B] represented by Formula (2), in which a molar ratio [A]/[B] of the structural unit [A] to the structural unit [B] in the cyclic olefin polymer is greater than or equal to 5/95 and less than or equal to 95/5.
    Type: Application
    Filed: May 30, 2018
    Publication date: August 20, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji INOUE, Takashi ODA, Keisuke KAWASHIMA
  • Publication number: 20200254728
    Abstract: A metal/resin composite structure includes: a metal member (M) having a fine uneven surface; and a polyamide-based resin member (A) bonded to the metal member (M), and the polyamide-based resin member (A) satisfies the following condition [A1] and condition [A2]: [A1] a glass transition temperature (Tg) observed by a differential scanning calorimeter (DSC) is equal to or higher than 85° C. and equal to or lower than 140° C.; and [A2] a crystallization temperature (Tc) observed by a differential scanning calorimeter (DSC) is equal to or higher than 250° C. and equal to or lower than 292° C.
    Type: Application
    Filed: October 25, 2018
    Publication date: August 13, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masaki MISUMI, Kazuki KIMURA, Kaoru MINAGAWA
  • Publication number: 20200247925
    Abstract: The present invention provides a 4-methyl-1-pentene/?-olefin copolymer being excellent in lightness, stress absorption, stress relaxation, vibration damping properties, scratch resistance, abrasion resistance, toughness, mechanical properties and flexibility, having no stickiness during molding operation and being excellent in the balance among these properties; a composition comprising the polymer; and uses thereof. The 4-methyl-1-pentene/?-olefin copolymer (A) of the present invention satisfies specific requirements, and comprises 5 to 95 mol % of a structural unit (i) derived from 4-methyl-1-pentene, 5 to 95 mol % of a structural unit (ii) derived from at least one kind of ?-olefin selected from ?-olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene and 0 to 10 mol % of a structural unit (iii) derived from a non-conjugated polyene, provided that the total of the structural units (i), (ii), and (iii) is 100 mol %.
    Type: Application
    Filed: April 14, 2020
    Publication date: August 6, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takayuki UEKUSA, Masahiko OKAMOTO, Yoshisada TAMO
  • Patent number: 10730988
    Abstract: Modified polyolefin particles are obtained by grafting a monomer having an ethylenically unsaturated group and a polar functional group in the same molecule to a polymer including one, or two or more specific ?-olefins and having a specific melting point, the modified polyolefin particles satisfying the following requirements (1) to (3): (1) the amount of grafting x by the monomer is not less than 0.5 wt % and not more than 20 wt %; (2) the x (wt %) and the intrinsic viscosity [?] (dl/g) measured in decalin at 135° C. satisfy the relation: log10[?]?0.1?0.15x; and (3) the particles have a gel content of less than 1 wt %.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 4, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Ryohei Shiga, Keiichi Ikeda, Kazuto Sugiyama, Takeharu Isaki, Masayoshi Aoki
  • Patent number: RE48228
    Abstract: A first recess (102) of a lower substrate (100) is coated with conductive ink to form a first auxiliary electrode layer (104), a lower electrode pattern (105) is formed thereon by vacuum deposition, a second recess (202) of an upper substrate (200) is coated with the conductive ink to form a second auxiliary electrode layer (204), an upper electrode pattern (205) is formed thereon by vacuum deposition, the upper and lower substrates are bonded to each other with an electric element (300) interposed between the lower substrate (100) and the upper substrate (100), and the upper and lower substrates are cut at positions on the overlap portion of the first auxiliary electrode layer (104) and the lower electrode pattern (105) and the overlap portion of the second auxiliary electrode layer (204) and the upper electrode pattern (205) so as to expose the cut surfaces of the substrates.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 29, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventor: Masatomo Matsui
  • Patent number: D898813
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: October 13, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hortense Desodt, Thomas Overthun