Patents by Inventor Satohiro Shishido

Satohiro Shishido 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).

  • Curable resin composition
    Patent number: 4390662
    Abstract: This invention relates to a curable resin composition suitable for use in the applications of casting material, coating material, putty, adhesives, various types of linings and FRP, said curable resin composition being characterized in that an unsaturated acrylic urethane prepared by addition reaction of a hydroxyl-terminated polymer, a polyisocyanate and a monohydroxylalkyl monoacrylate or a monohydroxylalkyl monomethacrylate, substantially free from an isocyanate group and having a weight-average extension of molecular chain of 100 A or more is added to at least one of an unsaturated polyester resin and an epoxy acrylate resin in an amount effective for the development of toughness, thus the toughness of the conventional unsaturated polyester or epoxyacrylate ester being improved by admixing said unsaturated acrylic urethane therewith.
    Type: Grant
    Filed: March 25, 1981
    Date of Patent: June 28, 1983
    Assignee: Showa Highpolymer Co., Ltd.
    Inventors: Tomonori Ando, Toshiaki Hanyuda, Satohiro Shishido, Fumiaki Sano, Kiyoyuki Ochi, Toshiaki Sugimoto, Yoshiro Okino