Patents Assigned to TOYOCHEM CO., LTD
  • Publication number: 20230390214
    Abstract: An object is to provide an adhesive patch that is excellent in both percutaneous absorbability of a drug and adhesiveness to the skin. An adhesive patch of the present invention includes a backing and an adhesive layer integrally laminated on one side of the backing, the adhesive layer including a drug, levulinic acid, and an acrylic adhesive including an acrylic polymer (A) containing a vinyl-based monomer (I) moiety having a solubility parameter of 9 (cal/cm3)1/2 or more. According to the present invention, it is possible to provide an adhesive patch that is excellent in both percutaneous absorbability of a drug and adhesiveness to the skin.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 7, 2023
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Hiroto TERASHIMA, Yutaka KATO, Tomomi HOSHINO, Toshikazu KOMODA
  • Patent number: 11825632
    Abstract: The present invention provides a thermally conductive insulating sheet having appropriate fluidity upon being heated and pressurized, and free from of the possibility of a material leaking to the outside beyond the original size of the sheet. The thermally conductive insulating sheet according to the present invention contains an uncured material and/or a semi-cured material of a binder resin (R) which is a thermosetting resin. In the present invention, a complex viscosity in a temperature range of 100-200° C. is 10,000-150,000 Pa·s, a ratio (?/?) of the maximum value (?) to the minimum value (?) of the complex viscosity in said temperature range is 1.0-4.0, and the flow value is 90-100%. Flow value(%)=W2/W1×100.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 21, 2023
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi Sawaguchi, Naohiro Tanaka, Kaori Sakaguchi, Kenji Andou, Hidenobu Kobayashi
  • Publication number: 20230365037
    Abstract: A hot-melt magnetic tape for a foam molded body, the tape having a magnetic layer formed from a hot-melt magnetic material, where the hot-melt magnetic material has a ring and ball softening point of 105° C. or more and 140° C. or less, and the hot-melt magnetic material includes: a thermoplastic resin containing an ethylene-vinyl acetate copolymer (A); and a magnetic powder (C), and, optionally, further includes a wax (B), where 20 to 80% by mass of the component (A), 0 to 8% by mass of the component (B), and 15 to 80% by mass of the component (C) are contained in 100% by mass in total of the component (A), component (B), and component (C), and a structural unit derived from a vinyl acetate monomer for the ethylene-vinyl acetate copolymer (A) accounts for 15 to 30% by mass.
    Type: Application
    Filed: May 11, 2023
    Publication date: November 16, 2023
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD., MOLD TECHNICAL OFFICE CO., LTD.
    Inventors: Hideyuki ISHIGURO, Kenichi HARA, Hiroshi YAMAGUCHI, Toshio IWASAWA, Futoshi TAKAHASHI, Ryo IWASAWA
  • Publication number: 20230313007
    Abstract: An adhesive for an electrical storage device packaging material containing a polyol compound (A), a polyisocyanate compound (B), and an epoxy resin (C), in which the polyol compound (A) contains an ester bond-containing polyol, and the following formula is satisfied when a stress at the time when a cured film obtained by performing curing under the condition of 80° C. for 2 weeks is stretched to twice its length at a speed of 6 mm/min under an environment of 20° C. and 65% RH is S1 [N/mm2], and a stress at the time when the cured film is held for 100 seconds in a stretched state is S2 [N/mm2]. Formula: 10.0?(S1?S2)/S1×100?40.0.
    Type: Application
    Filed: March 29, 2023
    Publication date: October 5, 2023
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYO-MORTON, LTD., TOYOCHEM CO., LTD.
    Inventors: Koki SHIRAISHI, Hiroshi HANAKI, Tsutomu HIROSHIMA, Takafumi AKIYAMA
  • Patent number: 11533833
    Abstract: An electromagnetic wave shielding sheet according to the disclosure is configured by a protection layer, a metal layer, and a conductive adhesive layer. The metal layer has a plurality of openings, and an aperture ratio of the opening is 0.1%-20%. In addition, a tensile breaking strength of the electromagnetic wave shielding sheet is 10 N/20 mm-80 N/20 mm.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: December 20, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Daisuke Kishi, Shota Mori, Takahiro Matsuzawa, Tsutomu Hayasaka
  • Patent number: 11434396
    Abstract: The invention provides a synthetic rubber pressure-sensitive adhesive which has excellent heat resistance and substrate adhesiveness, is capable of inhibiting offset, peeling or the like even in a high-temperature environment and is suitable for applications in a high-temperature environment, a pressure-sensitive adhesive sheet and a polishing member laminate. The synthetic rubber pressure-sensitive adhesive of the invention contains: a synthetic rubber (A) including a styrene-isoprene block copolymer, an adhesion-imparting resin (B), and a fatty acid ester (C) with a weight reduction rate of 1 wt % or less after being heated at 150° C. for 10 minutes. Based on 100 parts by weight of the synthetic rubber (A), the content of the adhesion-imparting resin (B) is set as ? parts by weight to 60 parts by weight, and the content of the fatty acid ester (C) is set as 0.1 parts by weight to 10 parts by weight.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: September 6, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventor: Tadashi Abe
  • Patent number: 11407201
    Abstract: A composite member (1) satisfies the following expressions. X/(E×|CTE(B)?CTE(A)|)?50, X/(E×|CTE(B)?CTE(C)|)?50, Y/|CTE(B)?CTE(A)|×L(BA)?50, and Y/|CTE(B)?CTE(C)|×L(BC)?50. X: shear bond strength (MPa) between the heat dissipating base substrate and heat generating member, Y: fracture elongation of the thermoconductive insulating adhesive film, E: modulus of elasticity (MPa) of the thermoconductive insulating adhesive film, CTE(A): linear expansion coefficient (° C.?1) of the heat dissipating base substrate, CTE(B): linear expansion coefficient (° C.?1) of the thermoconductive insulating adhesive film, CTE(C): linear expansion coefficient (° C.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 9, 2022
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi Sawaguchi, Naohiro Tanaka, Kaori Sakaguchi, Kenji Andou, Hidenobu Kobayashi
  • Publication number: 20220195258
    Abstract: The double-sided pressure-sensitive adhesive sheet according to one aspect is a double-sided pressure-sensitive adhesive sheet for bonding a polishing pad to a surface plate, for bonding a polishing member to the surface plate, or for forming the polishing member, the pressure-sensitive adhesive sheet including a sheet-shaped base material, and a first pressure-sensitive adhesive layer and a second pressure-sensitive adhesive layer provided on each main surface of the base material, where at least one of the first adhesive layer and the second adhesive layer is a pressure-sensitive adhesive layer that is formed from a pressure-sensitive adhesive including an acrylic-based copolymer having a specific composition and a specific molecular weight, a tackifier resin having a specific amount, and a tolylene diisocyanate trimethylolpropane adduct, the pressure-sensitive adhesive layer having a gel fraction of 5 to 50% by mass.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventor: Tadashi ABE
  • Patent number: 11208565
    Abstract: Processability of a paint film is improved and a water-soluble paint in which coloring during heating to a high temperature is minimized and which has excellent productivity and a coated can having a paint film of such a water-soluble paint are provided. A water-soluble paint including a polymer emulsion (C) and a phenolic resin (D) is provided; wherein the polymer emulsion (C) includes a shell part containing an acrylic polymer (A) having a carboxyl group and a core part containing an acrylic polymer (B) having an amide group, wherein the phenolic resin (D) includes a bifunctional phenolic resin (D2) based on a bifunctional phenol and a trifunctional phenolic resin (D3) based on a trifunctional phenol, and a mass ratio ((D2)/(D3)) between the bifunctional phenolic resin (D2) and the trifunctional phenolic resin (D3) is 95/5 to 40/60.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 28, 2021
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Takayasu Ikeda, Tetsuya Natsumoto, Yuki Sato
  • Patent number: 11172599
    Abstract: An electromagnetic-wave shielding sheet is an electromagnetic-wave shielding sheet used to form an electronic component-mounted substrate, the electronic component-mounted substrate including an electromagnetic-wave shielding layer covering at least a part of a step part and an exposed surface of a substrate, in which the electromagnetic-wave shielding sheet is a laminate including a cushion layer and a conductive layer, the conductive layer is an isotropic conductive layer containing a binder resin and a conductive filler, a thickness of the conductive layer is 8 to 70 ?m, and a content of the conductive filler in a region on a side opposite to a cushion layer side in the conductive layer is larger than that in a region on the cushion layer side in the conductive layer.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: November 9, 2021
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Shota Mori, Kazunori Matsudo, Kenji Ando, Tsutomu Hayasaka
  • Patent number: 11130890
    Abstract: An adhesive composition that exhibits excellent adhesive performance such as curved surface adhesiveness to low-polarity adherends and constant load peeling properties in high-temperature environments, and also an adhesive sheet and a method for producing the same.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: September 28, 2021
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Yoshitaka Tone, Toru Oya, Tetsuya Natsumoto, Hiroyuki Hayashi, Naoki Takeuchi, Yutaro Kato
  • Publication number: 20210251111
    Abstract: An electromagnetic-wave shielding sheet is an electromagnetic-wave shielding sheet used to form an electronic component-mounted substrate, the electronic component-mounted substrate including an electromagnetic-wave shielding layer covering at least a part of a step part and an exposed surface of a substrate, in which the electromagnetic-wave shielding sheet is a laminate including a cushion layer and a conductive layer, the conductive layer is an isotropic conductive layer containing a binder resin and a conductive filler, a thickness of the conductive layer is 8 to 70 ?m, and a content of the conductive filler in a region on a side opposite to a cushion layer side in the conductive layer is larger than that in a region on the cushion layer side in the conductive layer.
    Type: Application
    Filed: October 1, 2019
    Publication date: August 12, 2021
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Shota MORI, Kazunori MATSUDO, Kenji ANDO, Tsutomu HAYASAKA
  • Patent number: 11084192
    Abstract: A fabric-like material for reinforcement in an urethane foam molding is obtained by impregnating a part of a surface of a nonwoven fabric of organic fibers with a hot melt magnetic material and immobilizing the hot melt magnetic material. The hot melt magnetic material satisfies compositions described below and has a softening point of 70 to 100° C. Ethylene-vinyl acetate copolymer (A): 10 to 95% by mass. Wax (B): 0 to 30% by mass. Magnetic powder (C): 5 to 70% by mass. (The total of (A), (B) and (C) is 100% by mass.).
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 10, 2021
    Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, MOLD TECHNICAL OFFICE CO., LTD., TOYO INK SC HOLDINGS CO., LTD., TOYO ADL CORPORATION, TOYOCHEM CO., LTD.
    Inventors: Yoshiyuki Murata, Kensuke Inuzuka, Toshio Iwasawa, Kenichi Hara, Takafumi Senaga
  • Publication number: 20210242137
    Abstract: An electromagnetic wave shielding sheet according to the present embodiments is an electromagnetic wave shielding sheet for forming an electromagnetic wave shielding layer used for a component-mounting substrate including a substrate, an electronic component and an electromagnetic wave shielding layer, in which the electromagnetic wave shielding sheet includes at least one of a conductive layer before thermal pressing of the electromagnetic wave reflection layer and a conductive layer before thermal pressing of the electromagnetic wave absorption layer, the conductive layer before thermal pressing of the electromagnetic wave reflection layer includes a binder resin and a conductive filler, and the conductive layer before thermal pressing of the electromagnetic wave absorption layer includes a binder resin and an electromagnetic wave absorption filler. The Young's modulus of the conductive layer at 23° C. is set to 10 to 700 MPa.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 5, 2021
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Kazunori MATSUDO, Ryota UMEZAWA, Kenji ANDO, Tsutomu HAYASAKA
  • Patent number: 11045983
    Abstract: A fabric-like material for reinforcement in an urethane foam molding is obtained by impregnating a part of a surface of a nonwoven fabric of organic fibers with a hot melt magnetic material and immobilizing the hot melt magnetic material. The hot melt magnetic material satisfies compositions described below and has a softening point of 70 to 100° C. Ethylene-vinyl acetate copolymer (A): 10 to 95% by mass. Wax (B): 0 to 30% by mass. Magnetic powder (C): 5 to 70% by mass. (The total of (A), (B) and (C) is 100% by mass.).
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 29, 2021
    Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, MOLD TECHNICAL OFFICE CO., LTD., TOYO INK SC HOLDINGS CO., LTD., TOYO ADL CORPORATION, TOYOCHEM CO., LTD.
    Inventors: Yoshiyuki Murata, Kensuke Inuzuka, Toshio Iwasawa, Kenichi Hara, Takafumi Senaga
  • Publication number: 20210129489
    Abstract: A composite member (1) satisfies the following expressions. X/(E×|CTE(B)?CTE(A)|)?50, X/(E×|CTE(B)?CTE(C)|)?50, Y/|CTE(B)?CTE(A)|×L(BA)?50, and Y/|CTE(B)?CTE(C)|×L(BC)?50. X: shear bond strength (MPa) between the heat dissipating base substrate and heat generating member, Y: fracture elongation of the thermoconductive insulating adhesive film, E: modulus of elasticity (MPa) of the thermoconductive insulating adhesive film, CTE(A): linear expansion coefficient (° C.?1) of the heat dissipating base substrate, CTE(B): linear expansion coefficient (° C.?1) of the thermoconductive insulating adhesive film, CTE(C): linear expansion coefficient (° C.
    Type: Application
    Filed: August 13, 2018
    Publication date: May 6, 2021
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Toshiichi SAWAGUCHI, Naohiro TANAKA, Kaori SAKAGUCHI, Kenji ANDOU, Hidenobu KOBAYASHI
  • Publication number: 20200407591
    Abstract: An aqueous coating composition which does not contain any epoxy resin having a bisphenol skeleton or a biphenol skeleton, such as BPA, as a raw material, and can be formed into a coating film which has reduced adsorption of flavor odor components in can contents and has high retort resistance and processability. The aqueous coating composition includes a composite resin and water, where the composite resin includes a moiety of an epoxy resin and a moiety of a carboxyl group-containing acrylate copolymer, and the epoxy resin forming the moiety of the epoxy resin is a reaction product of an epoxy group in an epoxy compound not having any one of a bisphenol skeleton and a biphenol skeleton with a carboxyl group in a carboxyl group-containing polyester, the reaction product having an epoxy group.
    Type: Application
    Filed: April 12, 2019
    Publication date: December 31, 2020
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD., Mitsubishi Chemical Corporation
    Inventors: Shoya SATO, Akifumi TOBE, Kou MIYAMA
  • Publication number: 20200413576
    Abstract: An electromagnetic wave shielding sheet according to the disclosure is configured by a protection layer, a metal layer, and a conductive adhesive layer. The metal layer has a plurality of openings, and an aperture ratio of the opening is 0.1%-20%. In addition, a tensile breaking strength of the electromagnetic wave shielding sheet is 10 N/20 mm-80 N/20 mm.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Daisuke KISHI, Shota MORI, Takahiro MATSUZAWA, Tsutomu HAYASAKA
  • Patent number: 10858557
    Abstract: An adhesive includes: a urethane prepolymer (A) obtained by reacting a polyol (a) with a polyisocyanate (b) under such conditions that the molar ratio of NCO/OH is 0.5-0.9 and having a molecular-weight dispersion degree [(weight-average molecular weight (Mw))/(number-average molecular weight (Mn)); hereinafter referred to also as Mw/Mn] of 4-12; a polyfunctional polyol (B), and an isocyanate curing agent (C).
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: December 8, 2020
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Shingo Tanabe, Katsunori Fukuta, Chiyo Ishizu, Shuhei Saito
  • Patent number: 10820457
    Abstract: An electromagnetic wave shielding sheet according to the disclosure is configured by a protection layer, a metal layer, and a conductive adhesive layer. The metal layer has a plurality of openings, and an aperture ratio of the opening is 0.1%-20%. In addition, a tensile breaking strength of the electromagnetic wave shielding sheet is 10 N/20 mm-80 N/20 mm.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 27, 2020
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCHEM CO., LTD.
    Inventors: Daisuke Kishi, Shota Mori, Takahiro Matsuzawa, Tsutomu Hayasaka