Patents by Inventor Makiko Nagao

Makiko Nagao 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).

  • Rubber-reinforced thermoplastic resin composition containing particles of graft polymer
    Patent number: 6051650
    Abstract: A rubber-reinforced thermoplastic resin composition is disclosed. The rubber-reinforced thermoplastic resin composition comprises a thermoplastic resin matrix having dispersed therein particles of a graft polymer, the particles of a graft polymer comprising particles of a rubber polymer having emulsion-graft-polymerized to the surface thereof two or more kinds of vinyl compounds copolymirizable with the rubber polymer, wherein the surface graft coverage of the vinyl compounds graft-polymerized to the surface of the particles of a rubber polymer as determined by equation (m1) is 80% or more and the average thickness of the vinyl compounds graft-polymerized to the surface of the particles of a rubber polymer is from 5 to 25 nm:Surface graft coverage (%)=(s2/s1).times.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: April 18, 2000
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Shigeru Endo, Makiko Nagao, Toshinori Yamanaka