Patents Assigned to Toshiba Silicone Ltd.
  • Silicone grease composition
    Patent number: 5186849
    Abstract: A silicone grease composition comprising:(A) 100 parts by weight of a polyorganosiloxane containing at least two silicon-bonded vinyl groups per molecule and having a viscosity at 25.degree. C. of from 10 to 1,000,000 cSt;(B) from 10 to 200 parts by weight of a filler comprising at least one member selected from the group consisting of calcium carbonate, zinc carbonate, a composite zinc white, and silica; and(C) from 0.001 to 0.1 part by weight of platinum or a platinum compound.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: February 16, 1993
    Assignee: Toshiba Silicone Ltd.
    Inventors: Masanori Toya, Hideo Takahashi, Yasuji Matsumoto
  • Silicone emulsion composition
    Patent number: 4412035
    Abstract: The present invention relates to a silicone cationic emulsion composition of a polydioganosiloxane containing amino, epoxy, and hydroxyl groups as functional groups, and which may be used as a releasing agent, stripping agent, paint component, and anti-foaming agent.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: October 25, 1983
    Assignee: Toshiba Silicones Ltd.
    Inventor: Akitsugu Kurita
  • Method of forming silicone films
    Patent number: 4395443
    Abstract: There is provided a silicone film-forming composition and method for forming dust-resistant films from such compositions which are comprised of a condensation product of a benzene soluble polysiloxane and a silanol terminated polydiorganosiloxane in combination with a mixed solvent comprised of a volatile organosilicon compound and a hydrocarbon solvent.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: July 26, 1983
    Assignee: Toshiba Silicones, Ltd.
    Inventors: Chiyuki Shimizu, Kiyoshi Hosokowa
  • Silicone release coating and lubricating compositions and methods
    Patent number: 4378389
    Abstract: A silicone base release or lubricating agent is disclosed which is comprised of the reaction product of a silanol-containing polydiorganosiloxane fluid with a first reaction product of epoxy or glycidoxy functional silanes and aminofunctional silanes.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: March 29, 1983
    Assignee: Toshiba Silicones Ltd.
    Inventors: Kazo Maruyama, Shuhei Kosaka, Akitsugu Kurita
  • Room temperature curable polyorganosiloxane composition and method
    Patent number: 4371682
    Abstract: There is provided a room temperature curable polyorganosiloxane composition comprised of (A) a silanol-terminated polydiorganosiloxane having a viscosity of 500 to 200,000 centistokes at 25.degree. C. in combination with (B) an oxime radical-methoxyl radical exchange reaction product, and a catalyst for promoting the reaction of (A) and (B).
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: February 1, 1983
    Assignee: Toshiba Silicones, Ltd.
    Inventor: Mitsuyoshi Hashimoto
  • Room temperature curable polyorganosiloxane compositions
    Patent number: 4358558
    Abstract: There is provided a paintable room temperature curable polyorganosiloxane composition which is comprised of a silanol-terminated polydiorganosiloxane, an aminoxy functional organosilicon compound, an inorganic filler and a monohydric unsaturated alcohol containing a carbon-to-carbon triple bond and a hydroxyl group bonded with a primary or secondary carbon atom.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: November 9, 1982
    Assignee: Toshiba Silicones Ltd.
    Inventor: Chiyuki Shimizu