Patents Examined by Annabel Lee
  • Method of manufacturing a grafted resin composition
    Patent number: 4839432
    Abstract: A graft polymerization precursor is prepared through polymerization caused by impregnating an ethylene polymer with a vinyl monomer and a radical polymerizable PO, or a mixture of this graft polymerization precursor and an ethylene polymer and vinyl polymer, is kneaded in a molten state at 100.degree. to 300.degree. C. By so doing, a resin composition having a revolutionary high grafting efficiency can be obtained, so that secondary coagulation can be prevented.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: June 13, 1989
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Yasuo Moriya, Nobuyoshi Suzuki, Hiroshi Goto