Patents by Inventor Shunji Arimoto

Shunji Arimoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Isocyanate prepolymer and process for preparing the same
    Patent number: 5064928
    Abstract: The present invention provides an isocyanate prepolymer prepared by reacting an organic di-isocyanate with an unsaturated alcohol dimer having 16 to 24 carbon atoms and/or a hydrogen addition product of the unsaturated alcohol dimer and a process for preparing the same.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: November 12, 1991
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Mitsuo Kase, Kazue Tsuyuzaki, Yoichi Kawasaki, Shunji Arimoto
  • Polyvinyl chloride resin composition
    Patent number: 5055522
    Abstract: A polyvinyl chloride resin composition is disclosed, which comprises (a) a vinyl chloride homo- or copolymer, (B) a plasticizer, (C) a blocked urethane prepolymer as essential components, the blocked urethane prepolymer (C) being a prepolymer of isocyanurate type polyisocyanate prepared from an alkylene diisocyanate which may contain in the alkylene chain thereof a substituted or unsubstituted cyclohexane or aromatic ring.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: October 8, 1991
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Takenori Ikeda, Mitsuru Ohtsubo, Shunji Arimoto, Noboru Okoshi
  • Composition comprising vinyl ester, unsaturated urethane and polybasic acid
    Patent number: 4918150
    Abstract: An activation energy-curable resin composition comprising as an essential ingredient a resin obtained by reacting (a) a reaction product of a novolak-epoxy compound and an unsaturated monocarboxylic acid, (b) a reaction product of a diisocyanate and a poly(meth)acrylate having a hydroxyl group per moleucle and (c) at least one of an aromatic, aliphatic or alicyclic polybasic acid (or an anhydride thereof).
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: April 17, 1990
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Shigeru Sakakibara, Shunji Arimoto
  • Activation energy-curable resin composition
    Patent number: 4690987
    Abstract: An activation energy-curable resin composition comprising as an essential ingredient a resin obtained by reacting (a) the reaction product of a novolac epoxy compound and an unsaturated monocarboxylic acid with (b) the reaction product of a diisocyanate and a poly(meth)acrylate having one hydroxyl group for each molecule.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: September 1, 1987
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Shigeru Sakakibara, Shunji Arimoto, Hidenobu Ishikawa, Osamu Maruyama
  • Powder coating resin composition
    Patent number: 4321335
    Abstract: A powder coating resin composition comprising (A) a phosphorus-containing vinyl polymer containing a curable functional group and having a softening point, determined by the ring and ball method, of 70.degree. to 150.degree. C. and a number average molecular weight of 1500 to 30000, and (B) a curing agent.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: March 23, 1982
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Shunji Arimoto, Akio Shoji, Shoichiro Takezawa, Noboru Ishikawa, Hirofumi Takeda
  • Resin composition for powder paint
    Patent number: 4130601
    Abstract: A resin composition for powder paints, said composition comprising (I) 70 to 97% by weight of a polyester resin containing free carboxyl groups in the molecule and having an acid value of 20 to 100 KOH mg/g and a softening point of 70.degree. to 150.degree. C and (II) 3 to 30% by weight of glycidyl p-glycidyloxybenzoate.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: December 19, 1978
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Masataka Ohoka, Mitsuko Yamada, Akio Shoji, Shunji Arimoto