Patents by Inventor Kunihisa Abe

Kunihisa Abe 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).

  • Unsaturated polyester resin compositions
    Patent number: 4710420
    Abstract: An unsaturated polyester resin composition is provided comprising a hard unsaturated polyester component, a soft unsaturated polyester component and a cross-linking monomer. The soft polyester component contains a polyoxyalkylene segment having a molecular weight from 600 to 6000 in the backbone thereof and is dispersed in the hard polyester component forming fine particles having a particle size not greater than 4 microns. The resin composition, when cured, exhibits a Tg corresponding to the hard polyester component from 100.degree. C. to 200.degree. C. and another Tg corresponding to the soft polyester component from -100.degree. C. to 0.degree. C.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: December 1, 1987
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Satoshi Tonoki, Hidenari Tsunemi, Asaichi Nishimura, Kunihisa Abe