Patents by Inventor Tuneo Tanuma

Tuneo Tanuma 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).

  • Polyester-modified vinyl polymer and production method thereof
    Patent number: 4066586
    Abstract: A polyester-modified vinyl polymer comprising 50 - 3% by weight of a polyester component and 50 - 97% by weight of a polyvinyl component grafted on the polyester component, the polyester component having an oil length of 5 to 20%, an average molecular weight of 1,000 to 6,000, and an .alpha.,.beta.-unsaturated dicarboxylic acid component content of 1 to 5% by weight on the polyester component. The polyester-modified vinyl polymer is useful in a high-solid solvent type coating composition.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: January 3, 1978
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Tuneo Tanuma, Teruo Yoshida