Patents Assigned to Toshiba Silicon Co., Ltd.
  • Rubber composition and vulcanized rubber product
    Patent number: 4942202
    Abstract: A rubber composition that is prepared by reacting an organic peroxide, under shear deformation, with 3-70 parts by weight of silicone rubber (I), 30-97 parts by weight of a saturated elastomer (II) that substantially fails to be crosslinked with an organic peroxide when it is used alone, and 0-20 parts by weight of another elastomer (III) that is co-crosslinkable with component (I) in the presence of an organic peroxide and which is also co-crosslinkable or highly miscible with component (II) [where (I)+(II)+(III)=100 parts by weight].
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: July 17, 1990
    Assignees: Japan Synthetic Rubber Co., Ltd., Toshiba Silicon Co., Ltd.
    Inventors: Yoshiaki Zama, Itsuki Umeda, Yasuhiko Takemura, Masaaki Takashima, Yuichi Funabashi, Junichiro Watanabe, Kiyoshi Takeda, Hiromichi Yoshida
  • Makeup or cosmetic compositions
    Patent number: 4892726
    Abstract: There are disclosed makeup or cosmetic compositions comprising polymethylsilsesquiozane powders.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: January 9, 1990
    Assignee: Toshiba Silicon Co., Ltd.
    Inventors: Kazuya Yonekura, Shoji Daikuzono