Patents by Inventor Hidefumi Matsuya

Hidefumi Matsuya 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).

  • Polymerizable unsaturated polyester resin composition
    Patent number: 6512046
    Abstract: A practical polymerizable unsaturated polyester resin composition is provided, wherein a polyester skeleton derived from collected PET is introduced, for effective utilization of waste PET such as a PET bottle which has recently been considered a large obstacle to environmental protection. The polymerizable unsaturated polyester resin composition comprises a straight-chain polyester (A) having a (meth)acryloyl group at both ends of molecules and an ethylenically unsaturated monomer (B), said straight-chain polyester (A) having a (meth)acryloyl group at both ends of molecules being obtained by reacting: (a) a terephthalate oligomer having a hydroxyl group at both ends of molecules resulted from the alcoholysis reaction of collected waste polyethylene terephthalate by an aliphatic glycol having an ether bond, (b) a dibasic acid containing an aromatic dibasic acid as a principal component, and (c) a glycidyl meth)acrylate.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: January 28, 2003
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Shinya Ueno, Toshio Mita, Hidefumi Matsuya
  • Polymerizable unsaturated polyester resin composition
    Publication number: 20020022695
    Abstract: A practical polymerizable unsaturated polyester resin composition is provided, wherein a polyester skeleton derived from collected PET is introduced, for effective utilization of waste PET such as a PET bottle which has recently been considered a large obstacle to environmental protection. The polymerizable unsaturated polyester resin composition comprises a straight-chain polyester (A) having a (meth)acryloyl group at both ends of molecules and an ethylenically unsaturated monomer (B), said straight-chain polyester (A) having a (meth)acryloyl group at both ends of molecules being obtained by reacting: (a) a terephthalate oligomer having a hydroxyl group at both ends of molecules resulted from the alcoholysis reaction of collected waste polyethylene terephthalate by an aliphatic glycol having an ether bond, (b) a dibasic acid containing an aromatic dibasic acid as a principal component, and (c) a glycidyl meth)acrylate.
    Type: Application
    Filed: April 17, 2001
    Publication date: February 21, 2002
    Inventors: Shinya Ueno, Toshio Mita, Hidefumi Matsuya
  • Curable resin composition and coating material composition
    Patent number: 5747597
    Abstract: The present invention provides a curable resin composition comprising: a polymer (A) containing a polymerizable unsaturated bonding group; and a polymerizable unsaturated monomer (B). Polymerizable unsaturated monomer (B) comprises as an essential component an oligoalkyl(C.sub.2 -C.sub.4)ether(n=2-15)-monoalkoxy(C.sub.1 -C.sub.18)-(meth)acrylate. This curable resin composition according to the present invention displays superior adherence, air-drying, water resistance, and storage stability properties in addition to a reduced odor.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: May 5, 1998
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yukiko Fujita, Shinya Ueno, Yoko Kawasaki, Kumiko Fukakusa, Hidefumi Matsuya, Tomomasa Mitani, Akira Komori, Mika Matsumura