Patents by Inventor Motoo Mizumori

Motoo Mizumori 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).

  • Process for producing a thermoplastic elastomer composition
    Patent number: 5180769
    Abstract: An olefinic thermoplastic elastomer composition which is excellent in mechanical properties and is substitutable for vulcanized rubbers is provided, which comprises a mixture comprising (A) 40-95% by weight of an oil-extended olefinic copolymer rubber comprising 100 parts by weight of an olefinic copolymer rubber having a Mooney viscosity (ML.sub.1+4 100.degree. C.) of 150-350 and 20-150 parts byw eight of a mineral oil and (B) 5-60% by weight of an olefinic plastic, said mixture being partially crosslinked by dynamic heat treatment in the presence of an organic peroxide. This composition gives superior molded articles free from bleeding of oil on the surface.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: January 19, 1993
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Tadashi Hikasa, Koichiro Ibuki, Tatsuo Hamanaka, Motoo Mizumori
  • Olefinic thermoplastic elastomer composition
    Patent number: 5118753
    Abstract: An olefinic thermoplastic elastomer composition which is excellent in mechanical properties and is substitutable for vulcanized rubbers is provided, which comprises a mixture comprising (A) 40-95 % by weight of an oil-extended olefinic copolymer rubber comprising 100 parts by weight of an olefinic copolymer rubber having a Mooney viscosity (ML.sub.1+4 100.degree. C.) of 150-350 and 20-150 parts by weight of a mineral oil and (B) 5-60% by weight of an olefinic plastic, said mixture being partially crosslinked by dynamic heat treatment in the presence of an organic peroxide. This composition gives superior molded articles free from bleeding of oil on the surface.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: June 2, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadashi Hikasa, Koichiro Ibuki, Tatsuo Hamanaka, Motoo Mizumori