Patents Assigned to Dow Corning Toray Silicone Company, Limited
  • Publication number: 20040210075
    Abstract: A process for the preparation of (D) thiocyanato-bearing organoalkoxysilanes represented by the general formula (3) NCS—R1—Si(OR2)nR33-n wherein R1 is a divalent hydrocarbon group having 1 to 6 carbon atoms, R2 and R3 are monovalent hydrocarbon groups, and the subscript n has a value of from 0 to 3, in which (A) a thiocyanic acid salt represented by the general formula (1) MSCN, wherein M is an alkali metal and (B) a halogenated alkylalkoxysilane represented by the general formula (2) XR1Si(OR2)nR33-n wherein X is a halogen atom, and R1, R2, R3, and the subscript n are the same as above, are reacted in the presence of (C) a phase transfer catalyst.
    Type: Application
    Filed: February 24, 2004
    Publication date: October 21, 2004
    Applicant: Dow Corning Toray Silicone Company Limited
    Inventor: Kenji Wakita
  • Patent number: 6602945
    Abstract: A vibration damping silicone composition that exhibits an excellent vibration damping performance and long-term storage stability comprising a silicone oil, a silicone resin powder that is solid at room temperature, and a surface-hydrophobic silica powder having a pH of greater than 6 but less than 9. The composition is particularly useful in shock absorbers for electronic and/or electrical equipment such as compact disk players, compact disk changers, mini-disk players, and car navigation devices.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: August 5, 2003
    Assignee: Dow Corning Toray Silicone Company Limited
    Inventors: Hideki Kobayashi, Masayuki Hayashi
  • Patent number: 6433205
    Abstract: Magnetic separators are used for treating silicon-containing materials from chlorosilane reactors to remove magnetically influenced components in the silicon-containing materials. The removal of such impurities allows for enhanced reactivity of the silicon-containing materials in processes wherein the silicon-containing materials are raw materials for the production of silicon based compounds, such as, for example, basic alkylhalosilanes such as dimethyldichlorosilane, methyldichlorosilane, and other chlorosilanes such as trichlorosilane, which chlorosilanes are useful in the preparation of valuable silicon-containing products.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: August 13, 2002
    Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Company, Limited
    Inventors: Jonathan Ashley Brinson, John Eric Herman, David William Snodgrass, Hidehiko Hosokawa
  • Patent number: 5084587
    Abstract: The present invention relates to novel alkylamino-substituted organosilicon compounds and a method for their preparation. The described process involves a dehydrohalogenation reaction between a triorganosilylalkyl halide and an aminophenol in the presence of a hydrogen halide acceptor.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: January 28, 1992
    Assignee: Dow Corning Toray Silicone Company, Limited
    Inventors: Hiroji Enami, Takeshi Imai
  • Patent number: 4946893
    Abstract: Cured silicone rubber powder containing large amounts of particulate material formed by dispersing a liquid silicone rubber composition curable by a platinum-catalyzed hydrosilation reaction into water. The presence of a low molecular weight, volatile polydiorganosiloxane makes it possible to incorporate at least 100 parts by weight of particulate material per 100 parts of curable polydiorganosiloxane into the composition. The volatile polydiorganosiloxane is removed from the cured polwder. Finely divided magnetic metals, electrically conductive materials and reinforcing silica powders can be incorporated using the present method.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: August 7, 1990
    Assignee: Dow Corning Toray Silicone Company Limited
    Inventors: Masayuki Saito, Keiji Yoshida, Mitsuo Hamada