Patents Assigned to DIC Corporation
  • LAYERED BODY, MOLDED ARTICLE, PRINTED-WIRING BOARD AND ELECTROMAGNETIC WAVE SHIELD
    Publication number: 20220363852
    Abstract: A laminate that includes a substrate made of a polyolefin-based resin and is excellent in adhesion between the substrate and a metal plating layer is provided in a simple manner without roughening the surface of the substrate. In addition, a molded article, a printed wring board, and an electromagnetic wave shield using the laminate using the same are provided. Used is a laminate configured such that on a substrate (A) made of a polyolefin-based resin (a), a primer layer (B) containing a polyolefin-based resin (b) that is organic solvent soluble or water dispersible, a metal particle layer (C), and a metal plating layer (D) are sequentially laminated.
    Type: Application
    Filed: September 17, 2020
    Publication date: November 17, 2022
    Applicant: DIC Corporation
    Inventors: Wataru Fujikawa, Akihiro Iwamoto, Jun Shirakami
  • Lubricating oil composition
    Patent number: 11499113
    Abstract: A lubricating oil composition with high thermal stability, corrosion resistance, and extreme-pressure performance is provided. The present invention have been completed by finding that a lubricating oil composition containing a particular primary aliphatic polysulfide has excellent thermal stability and extreme-pressure performance. A lubricating oil composition containing a base oil and an additive agent, wherein an aliphatic polysulfide constitutes as an additive agent 1% to 10% by mass of the lubricating oil composition, and a primary aliphatic polysulfide constitutes 1% to 50% by mass of the aliphatic polysulfide.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: November 15, 2022
    Assignee: DIC CORPORATION
    Inventors: Hiroshi Sakata, Shuujirou Ootsuki, Takafumi Iba
  • Cell culture substrate
    Patent number: 11499136
    Abstract: The present invention provides a cell culture substrate including a polymer having a lower critical solution temperature, the substrate including one or more inorganic materials selected from a water-swellable clay mineral and silica and further including an adhesive matrix in the substrate, in which the adhesive matrix is an extracellular matrix and/or an adhesive synthetic matrix. Furthermore, the invention is to provide a cell culture substrate in which the extracellular matrix is at least one selected from laminin, fibronectin, vitronectin, cadherin, and fragments thereof, and/or the adhesive synthetic matrix is poly[2-(methacryloyloxy)ethyl dimethyl-(3-sulfopropyl) ammonium hydroxide] or an oligopeptide-supporting polymer.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 15, 2022
    Assignee: DIC Corporation
    Inventors: Tetsuo Takada, Naoto Sakurai, Ayako Isshiki, Noriko Santou
  • MOLYBDENUM SULFIDE POWDER AND METHOD FOR PRODUCING SAME, HEAVY-METAL ADSORBENT, PHOTOTHERMAL CONVERSION MATERIAL, DISTILLATION METHOD, OXYGEN REDUCTION CATALYST, AND CATALYST INK
    Publication number: 20220348476
    Abstract: A molybdenum sulfide powder according to the invention contains molybdenum disulfide having a 3R crystal structure. A heavy-metal adsorbent according to the invention contains molybdenum sulfide particles, and the molybdenum sulfide particles have a median diameter Dso of 10 nm to 1,000 nm obtained by a dynamic light scattering type particle diameter distribution measuring device. A photothermal conversion material according to the invention contains a material containing molybdenum sulfide particles and generates heat by absorbing light energy.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 3, 2022
    Applicant: DIC Corporation
    Inventors: Hironobu OKI, Yusuke KANO, Tomoki DOHI, Seiji MIZUTA, Minoru TABUCHI, Jianjun YUAN, Masato OTSU
  • Resist material
    Patent number: 11487204
    Abstract: To provide a resist material that can form a film with high smoothness and uniformity and has high patterning performance, such as resolution, a resist material is provided that contains a calixarene compound (A) with a molecular structure represented by the following structural formula (1) and a resin component (B); wherein R1 denotes a perfluoroalkyl group or a structural moiety with a perfluoroalkyl group; R2 denotes a hydrogen atom, a polar group, a polymerizable group, or a structural moiety with a polar group or a polymerizable group; R3 denotes a hydrogen atom, an aliphatic hydrocarbon group that optionally has a substituent, or an aryl group that optionally has a substituent; n denotes an integer in the range of 2 to 10; and * denotes a bonding point with an aromatic ring.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 1, 2022
    Assignee: DIC Corporation
    Inventors: Tomoyuki Imada, Shinya Yamamoto, Masanori Miyamoto
  • MOLYBDENUM TRIOXIDE POWDER AND METHOD FOR PRODUCING SAME
    Publication number: 20220340443
    Abstract: A molybdenum trioxide powder contains an aggregate of primary particles having a ? crystal structure of molybdenum trioxide. The molybdenum trioxide powder has a MoO3 content ratio of 99.6% or more measured by X-ray fluorescence (XRF), and has an average particle diameter of the primary particles of 1 ?m or less. A method for producing the above molybdenum trioxide powder includes vaporizing a molybdenum oxide precursor compound to form molybdenum trioxide vapor, and cooling the molybdenum trioxide vapor.
    Type: Application
    Filed: September 24, 2020
    Publication date: October 27, 2022
    Applicant: DIC Corporation
    Inventors: Hironobu OKI, Yusuke KANO, Jianjun YUAN
  • MOISTURE-CURABLE POLYURETHANE RESIN COMPOSITION, ADHESIVE, AND LAMINATE
    Publication number: 20220340796
    Abstract: An object of the invention is to provide a moisture-curable polyurethane resin composition containing a biomass raw material and having excellent adhesiveness to a fabric (particularly, a water-repellent fabric) and excellent film strength. The invention provides a moisture-curable polyurethane hot-melt resin composition containing: a urethane prepolymer (i) having an isocyanate group, which is a reaction product of a polyol (A) and a polyisocyanate (B), the polyol (A) containing a polyester polyol (a1) containing, as raw materials, a biomass-derived polybasic acid (x) and a biomass-derived glycol (y), and another polyester polyol (a2). In addition, the invention provides an adhesive containing the moisture-curable polyurethane hot-melt resin composition.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 27, 2022
    Applicant: DIC Corporation
    Inventor: Kunihiko KOMATSUZAKI
  • MOISTURE-PERMEABLE WATERPROOF FABRIC
    Publication number: 20220341090
    Abstract: A moisture-permeable waterproof fabric includes: a cloth (i), an adhesive layer (ii), and a surface skin layer (iii). The adhesive layer (ii) is formed from a moisture-curable polyurethane hot melt resin composition that contains a urethane prepolymer (C) having an isocyanate group, and the urethane prepolymer (C) is a reaction product of a polyisocyanate (B) and a polyol (A) containing a biomass-derived polyester polyol (a1). The surface skin layer (iii) is formed from a urethane resin composition that contains a urethane resin (R) containing a polyol (P) and a polyisocyanate (Q) as essential raw materials thereof, and the polyol (P) contains a polyol (P1) having an oxyethylene group and a specific polyester polyol (P2).
    Type: Application
    Filed: September 3, 2020
    Publication date: October 27, 2022
    Applicant: DIC Corporation
    Inventors: Kunihiko KOMATSUZAKI, Yoshinori KANAGAWA
  • Synthetic leather
    Patent number: 11479910
    Abstract: The present invention provides a synthetic leather including at least a base material (i), an adhesive layer (ii), and a skin layer (iii), wherein both the adhesive layer (ii) and the skin layer (iii) are formed of a urethane resin composition containing an anionic urethane resin having an anionic group concentration of 0.25 mmol/g or less, water, and an anionic surfactant. Preferably, the anionic surfactant is an alkylsulfosuccinate. The anionic group concentration of the anionic urethane resin is preferably within the range of 0.005 to 0.25 mmol/g and more preferably within the range of 0.01 to 0.2 mmol/g.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 25, 2022
    Assignee: DIC Corporation
    Inventor: Ryo Maeda
  • Synthetic leather
    Patent number: 11479911
    Abstract: The present invention provides a synthetic leather including at least a base (i), an adhesive layer (ii), and a skin layer (iii). The adhesive layer (ii) is formed of a urethane resin composition including a urethane resin (A) produced using an aromatic polyisocyanate (a1) as a raw material and water (B). The skin layer (iii) is formed of a urethane resin composition including an anionic urethane resin (X) having an anionic group concentration of 0.25 mmol/g or less, water (Y), and an anionic surfactant (Z). The aromatic polyisocyanate (a1) preferably includes toluene diisocyanate. The urethane resin (A) has an aromatic ring concentration of 0.1 to 2.5 mol/kg.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 25, 2022
    Assignee: DIC Corporation
    Inventor: Ryo Maeda
  • Synthetic leather
    Patent number: 11479909
    Abstract: The present invention provides a synthetic leather including at least a base material (i), an adhesive layer (ii), and a skin layer (iii), wherein the adhesive layer (ii) is formed of an anionic urethane resin composition containing an anionic urethane resin (S) having an anionic group concentration of 0.25 mmol/g or less, water (T), and an anionic surfactant (U), and the skin layer (iii) is formed of a urethane resin composition containing a urethane resin (A), for which a raw material is reactive silicone (a1) having a functional group that reacts with an isocyanate group, and containing water (B). Preferably, the urethane resin (A) is an anionic urethane resin having an acid value of 20 mgKOH/g or less.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 25, 2022
    Assignee: DIC Corporation
    Inventor: Ryo Maeda
  • Compound, photopolymerization initiator, photocurable composition and cured product thereof, and photocurable ink and print using the same
    Patent number: 11479569
    Abstract: There are provided a compound represented by general formula (1), a photopolymerization initiator comprising this compound, a photocurable composition having this photopolymerization initiator and a photocurable compound as essential components, and a cured product formed by curing this photocurable composition, wherein in formula (1), R1 and R2 each independently represents an alkyl group or the like; R3 to R5 each independently represent a hydrogen atom, an alkyl group or the like; X1 represents a single bond or an alkylene group; and X2 represents a bonding group represented by general formulas (2) to (4), and wherein n represents an integer of 1 to 6, when n is an integer of 1, Y represents an alkyl group, an aryl group or the like.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: October 25, 2022
    Assignee: DIC CORPORATION
    Inventors: Masanori Miyamoto, Tomokazu Yamada, Yong Fang, Fangxi Xiu, Changjun Deng
  • Prepreg resin composition, prepreg, and molded article
    Patent number: 11479630
    Abstract: Provided is a prepeg resin composition, containing: a urethane (meth)acrylate (A) that is a reaction product of polyisocyanate (a1), polyol (a2), and hydroxy alkyl (meth)acrylate (a3); and a polymerization initiator (B), as an essential component, in which the polyisocyanate (a1) is at least one polyisocyanate selected from 2,4?-diphenyl methane diisocyanate, 4,4?-diphenyl methane diisocyanate, a carbodiimide modified product of 4,4?-diphenyl methane diisocyanate, and polymethylene polyphenyl polyisocyanate, and the polyol (a2) has an aromatic-ring and an oxyalkylene structure. The prepreg resin composition of the invention is excellent in workability and molding properties, and is capable of forming a molded article excellent in various physical properties such as external appearance and heat resistance, and thus, can be preferably used in a prepreg and a molded article thereof.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 25, 2022
    Assignee: DIC Corporation
    Inventors: Yuko Takikawa, Tomoaki Shinchi
  • Hollow fiber membrane module and production method therefor, and epoxy resin used in hollow fiber membrane and production method
    Patent number: 11478753
    Abstract: Provided is a hollow fiber membrane module that exhibits excellent durability even when a chemical such as a radical polymerizable compound is used for a separation or mixing process. Also provided is a method for producing the hollow fiber membrane module in a highly productive manner. More specifically, there is provided a hollow fiber membrane module at least including a tubular body, a cap, a hollow fiber membrane, and an end seal portion, wherein at least a liquid contacting portion of the end seal portion is sealed with a cured product of a curable resin composition including an epoxy resin, and wherein the epoxy resin includes a polyglycidyl ether of a polycondensate of an aromatic compound containing a phenolic hydroxyl group and an aromatic compound containing a formyl group and a phenolic hydroxyl group, and there is provided a method for producing the module.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 25, 2022
    Assignee: DIC CORPORATION
    Inventors: Youhei Suganuma, Kazumi Oi, Tsugio Tomura, Makoto Kimura
  • Synthetic leather
    Patent number: 11479908
    Abstract: The present invention provides a synthetic leather including at least a base (i), an adhesive layer (ii), and a skin layer (iii). The adhesive layer (ii) is formed of a urethane resin composition including a urethane resin (A) produced using an aromatic polyisocyanate (a1) as a raw material and water (B). The skin layer (iii) is formed of a urethane resin composition including an anionic urethane resin (X) having an anionic group concentration of 0.15 mmol/g or less and water (Y). The aromatic polyisocyanate (a1) preferably includes toluene diisocyanate. The urethane resin (A) has an aromatic ring concentration of 0.1 to 2.5 mol/kg.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 25, 2022
    Assignee: DIC Corporation
    Inventor: Ryo Maeda
  • TUBE UNIT AND DEGASSING MODULE
    Publication number: 20220331713
    Abstract: A tube unit includes multiple tubes and bundling portions that bundle end portions of respective tubes at opposite ends of the tubes. At least one of the end portions of respective tubes has a tube wall portion that tubularly extends in an extension direction of the tubes and also has a protrusion protruding radially outward from the tube wall portion.
    Type: Application
    Filed: August 11, 2020
    Publication date: October 20, 2022
    Applicant: DIC Corporation
    Inventors: Youhei SUGANUMA, Kazuyasu KAWASHIMA, Akira SATO, Kazumi OI
  • Calixarene compound, curable composition, and cured product
    Patent number: 11472763
    Abstract: A calixarene compound represented by formula (1) below is provided. The calixarene compound contains, per molecule, at least one —CH2OH group or phenolic hydroxy group and at least one carbon-carbon unsaturated bond. R1's are a structural moiety (A), which has a —CH2OH group; a structural moiety (B), which has a carbon-carbon unsaturated bond; a structural moiety (C), which has a —CH2OH group and a carbon-carbon unsaturated bond; a monovalent organic group (D), which is different from (A), (B), and (C); or a hydrogen atom (E). R2's are (A), (B), (C), (D), or (E) provided that not all R2's are (E). R3's are one of a hydrogen atom, an aliphatic hydrocarbon group, and an aryl group, n is 2 to 10. * is a point of attachment to an aromatic ring. A curable composition including the calixarene compound is provided.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 18, 2022
    Assignee: DIC Corporation
    Inventors: Shinya Yamamoto, Yutaka Kadomoto, Masanori Miyamoto, Tomoyuki Imada, Hidetomo Kai
  • Metal oxide production apparatus and metal oxide production method
    Patent number: 11472712
    Abstract: Provided is a metal oxide production apparatus that implements a flux evaporation method. The production apparatus includes a firing furnace configured to subject a metal compound to firing in the presence of flux, a cooling pipe connected to the firing furnace and configured to convert vaporized flux resulting from the firing into powder, and a recovery means configured to recover powdered flux converted in the cooling pipe. Furthermore, provided is a metal oxide production method comprising a step (1) of subjecting a metal compound to firing in the presence of flux and obtaining a metal oxide and vaporized flux, a step (2) of converting the vaporized flux into powder by cooling the vaporized flux, and a step (3) of recovering powdered flux resulting from the converting.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: October 18, 2022
    Assignee: DIC Corporation
    Inventors: Kiyoo Kamei, Jian-Jun Yuan, Hitoshi Sekine, Hiroshi Kinoshita
  • Foldable circular polarizing plate and display device
    Patent number: 11476447
    Abstract: A foldable circular polarizing plate includes a polarizer and a foldable compensation film disposed on one surface of the polarizer, wherein in-plane retardations of the liquid crystal layer at 450 nm, 550 nm, and 650 nm wavelengths satisfy Relationship Equations 1 or 2, the compensation film is configured to absorb light in a wavelength region of less than or equal to 420 nm, and a reflection color in a CIE-Lab color coordinate system satisfies ?a*b*?5.0 and a foldable organic light emitting diode display including the same.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 18, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., DIC CORPORATION
    Inventors: Tsuyoshi Ohyama, Seung Hyun Lee, Hyun-Seok Choi, Hidetoshi Nakata, Toru Ishii
  • AQUEOUS RESIN COMPOSITION, AQUEOUS PAINT, AND PLASTIC MOLDED ARTICLE COATED WITH THE AQUEOUS PAINT
    Publication number: 20220325131
    Abstract: Provided is an aqueous resin composition containing a polycarbonate-modified acrylic resin that is a reaction product of a polycarbonate diol (A) made from 1,4-butanediol as an essential raw material and an unsaturated monomer mixture (B) containing methyl methacrylate, an unsaturated monomer (b1) having a hydroxy group, an unsaturated monomer (b2) having a carboxy group, and an unsaturated monomer (b3) having an alicyclic structure as essential components, and an aqueous medium, in which the ratio of the unsaturated monomer (b3) in the unsaturated monomer mixture (B) is in the range of 3 to 60% by mass. This aqueous resin composition is suitable for aqueous paints and plastic molded articles since the composition can form a coating film having high adhesion to a plastic substrate and having high water-resistant adhesion and fragrance resistance.
    Type: Application
    Filed: September 24, 2020
    Publication date: October 13, 2022
    Applicant: DIC Corporation
    Inventors: Kazuki Nakamoto, Kenta Dohi, Takashi Mukai