Patents Assigned to Tokyo Silicone Co., Ltd.
  • Patent number: 6962352
    Abstract: A gasket provided with a sliding-treated layer on the surface of a fluorine rubber gasket body. The sliding-treated layer is a baked coated film of a sliding treating agent. The sliding treating agent is an aqueous emulsion containing a solid lubricant, an urethane-based resin as a matrix, and a reactive group-coupled alkyltrialkoxysilane series compound represented by the following chemical formula as an adherability modifier. X—CnH2n—Si(OR)3 {wherein X (reactive group) is an amino-containing group or an epoxy-containing group, n is a natural number of 2 to 4, and R is an alkyl group having a carbon number of 1 to 3}.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: November 8, 2005
    Assignees: Toyoda Gosei Co., Ltd., Tokyo Silicone Co., Ltd.
    Inventors: Hiroyuki Sato, Takahiro Asai, Toshikazu Kondo, Hirokazu Fujimo
  • Patent number: 5635002
    Abstract: Disclosed is a structure composed of a ragged base body with a ragged surface and a non-adhesive layer of a non-adhesive high polymer, in which the layer is fixed to at least the depressions of the ragged surface in such a way that the ragged profile of the body appears on the outer surface, reiterated by the layer. The ragged profile has a mean surface roughness Ra of 0.5 to 20 .mu.m and the mean distance Z between the adjacent projections forming the ragged profile is 20 to 1000 .mu.m. The non-adhesive high polymer may be a silicone high polymer having a silicone oil content of 10% or less. It has an effective surface tension of 32 dyn/cm or less. As the structure has improved releasing characteristics, adhesion of an adhesive substance to the structure may be effectively prevented without using any conventional releasing agent.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 3, 1997
    Assignee: Tokyo Silicone Co., Ltd.
    Inventors: Isamu Oikawa, Katsuhiko Maeda
  • Patent number: 5466510
    Abstract: Disclosed is a structure composed of a ragged base body with a ragged surface and a non-adhesive layer of a non-adhesive high polymer, in which the layer is fixed to at least the depressions of the ragged surface in such a way that the ragged profile of the body appears on the outer surface, reiterated by the layer. The ragged profile has a mean surface roughness Ra of 0.5 to 20 .mu.m and the mean distance Z between the adjacent projections forming the ragged profile is 20 to 1000 .mu.m. The non-adhesive high polymer may be a silicone high polymer having a silicone oil content of 10% or less. It has an effective surface tension of 32 dyn/cm or less. As the structure has improved releasing characteristics, adhesion of an adhesive substance to the structure may be effectively prevented without using any conventional releasing agent.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: November 14, 1995
    Assignee: Tokyo Silicone Co., Ltd.
    Inventors: Isamu Oikawa, Katsuhiko Maeda