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    ELECTRIC VISCOUS FLUID
    51.
    发明专利
    ELECTRIC VISCOUS FLUID 失效

    公开(公告)号：JPH0428794A

    公开(公告)日：1992-01-31

    申请号：JP13254090

    申请日：1990-05-24

    Applicant: BRIDGESTONE CORP

    Inventor： FUKUYAMA YOSHIKI ,  ISHINO YUICHI ,  SAITO TASUKU

    IPC: C10M169/04 ,  C10N10/06 ,  C10N20/02 ,  C10N20/06 ,  C10N40/14

    Abstract: PURPOSE:To provide the title fluid having great electric viscous effects with small electric power consumed and excellent in sedimentation stability, comprising each specific disperse phase consisting of noncrystalline aluminosilicate particles and oil phase consisting of an electrical insulating oil at a specified proportion. CONSTITUTION:The objective fluid comprising (A) 1-60 pts.wt. of a disperse phase consisting of noncrystalline alumina silicate particles 0.01-100 (pref. 1-10)mum in mean size, 8-1000 (esp. pref. 8-50) in Si/Al atom ratio and 1-10 (pref. 3-5)wt.% in moisture content, derived from pref. an alumina-coated silica sol as starting material, and (B) 40-99 pts.wt. of an oil phase consisting of an electrical insulating oil having 0.65-1000 (pref. 5-50)cSt in the viscosity at room temperature.

    ELECTRIC VISCOUS FLUID
    52.
    发明专利
    ELECTRIC VISCOUS FLUID 失效

    公开(公告)号：JPH03181597A

    公开(公告)日：1991-08-07

    申请号：JP32050389

    申请日：1989-12-12

    Applicant: BRIDGESTONE CORP

    Inventor： FUKUYAMA YOSHIKI ,  KURACHI IKUO ,  SAITO TASUKU

    IPC: C10M159/12 ,  C10M169/04 ,  C10M171/00 ,  C10M171/02 ,  C10M171/06

    Abstract: PURPOSE:To obtain an electric viscous fluid consisting of a dispersing phase consisting of an intercalation compound obtained by inserting an organic compound into layers of substance having planar layered structure and liquid phase consisting electrically insulating oil, exhibiting large electric viscous effect and having reduced consumption of electric power. CONSTITUTION:The aimed electric viscous fluid consisting of (A) dispersing phase consisting of 1-60wt.% intercalation compound obtained by inserting an organic compound such as cationic surfactant into layers of a substance such as layered aluminogilicate or layered polysilicate having planer layered structure and having 0.1-10mum average grain size and 0.01-4wt.% water content and (B) 40-99wt.% electrically insulating oil having 0.65-500cSt viscosity at ambient temperature.

    COSMETIC
    58.
    发明专利
    COSMETIC 失效

    公开(公告)号：JPH07330543A

    公开(公告)日：1995-12-19

    申请号：JP12875194

    申请日：1994-06-10

    Applicant: BRIDGESTONE CORP

    Inventor： YAMADA TOMOHARU ,  WADA HIROAKI ,  SAITO TASUKU

    IPC: A61K8/30 ,  A61K8/00 ,  A61K8/19 ,  A61K8/25 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q1/12 ,  A61Q19/00 ,  A61K7/02 ,  A61K7/48

    Abstract: PURPOSE:To provide a cosmetic containing chemically stable powder and having high adhesion to the skin, spreadability on the skin and coating power. CONSTITUTION:This cosmetic contains 2-100wt.% of silicon carbide particles having low impurity content, uniform particle size and an average particle diameter of 0.01-50mum. The silicon carbide particle can be produced by a solid- phase process comprising the baking of a substance containing high-purity silicon and a carbon-containing substance in an inert gas atmosphere.

    ELECTROVISCOUS FLUID
    60.
    发明专利
    ELECTROVISCOUS FLUID 失效

    公开(公告)号：JPH06158078A

    公开(公告)日：1994-06-07

    申请号：JP33383492

    申请日：1992-11-20

    Applicant: BRIDGESTONE CORP

    Inventor： ISHINO YUICHI ,  MIYANO MARI ,  ENDO SHIGEKI ,  SAITO TASUKU

    IPC: C10M169/04 ,  C10N20/06 ,  C10N40/14 ,  C10N60/00

    Abstract: PURPOSE:To obtain an electroviscous fluid having a high electroviscous effect, reduced in the precipitation of the disperse phase, and excellent in long-term stability, temperature characteristics and a response to an applied electric field. CONSTITUTION:This fluid comprises 40-99wt.% liquid phase comprising an electrical insulation only medium and 1-60wt.% disperse phase comprising a carbonaceous powder having a ration of the number of the carbon atoms to that of the hydrogen atoms in a range of 1.70 to 3.50. The oily medium partly (0.1-20wt.% based on the powder) consists of an amino-modified silicone oil.

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