COMPOSITIONS WITH IMPROVED SEALING CHARACTERISTICS FOR MOLD-IN-PLACE GASKETS
    8.
    发明申请
    COMPOSITIONS WITH IMPROVED SEALING CHARACTERISTICS FOR MOLD-IN-PLACE GASKETS 审中-公开
    具有改进的密封垫片特性的组合物

    公开(公告)号:US20110068512A1

    公开(公告)日:2011-03-24

    申请号:US12953723

    申请日:2010-11-24

    IPC分类号: B29C45/72 C08J3/28

    摘要: The present invention relates to compositions with improved sealing characteristics for mold-in-place gaskets, and a process for forming a mold-in-place gasket by liquid injection molding. More particularly, the present invention relates to a mold-in-place gasket composition incorporating (meth)acrylate-functionalized silica, plasticizers, or both, with improved modulus and sealing properties, and a process for forming such mold-in-place gasket.

    摘要翻译: 本发明涉及具有改进的就位垫片密封特性的组合物,以及用于通过液体注射成型形成现浇垫片的方法。 更具体地说,本发明涉及一种结合(甲基)丙烯酸酯官能化二氧化硅,增塑剂或两者的模内和密封性能的模内就位垫片组合物,以及用于形成这种现浇垫片的方法。

    Oil resistant compositions
    10.
    发明授权
    Oil resistant compositions 有权
    耐油组合物

    公开(公告)号:US06444740B1

    公开(公告)日:2002-09-03

    申请号:US09831465

    申请日:2001-09-27

    IPC分类号: C08K326

    摘要: The present invention provides silicone compositions, cured elastomers thereof demtonstrate improved resistance to oil. The compositions include a reactive silicone component, wherein the silicone component cures by way of an addition cure mechanism or a condensation cure mechanism; and a basic filler component to confer oil resistance to the cured elastomer. Where the reactive silicone component cures by way of an addition cure mechanism, an addition cure catalyst is also included. To that end, in one embodiment of the invention, the composition includes a vinyl-terminated silicone fluid, a hydrogen-functionalized silicone fluid; a basic filler to confer oil resistance to the cured elastomer and an addition cure catalyst. In another embodiment of the invention, the composition includes a hydroxy-terminated diorganopolysiloxane, a precipitated calcium carbonate, at least about 5% by weight of a composition comprising magnesium oxide particles having a mean particle size of about 0.5 &mgr;M to about 1.5 &mgr;M and a mean surface area of about 50 M2/g to about 175 M2/g and a crosslinker.

    摘要翻译: 本发明提供硅酮组合物,其固化的弹性体具有改善的耐油性。 组合物包括反应性硅氧烷组分,其中硅氧烷组分通过加成固化机理或缩合固化机理固化; 以及赋予固化弹性体耐油性的基本填料组分。 当反应性硅氧烷组分通过加成固化机理固化时,还包括加成固化催化剂。 为此,在本发明的一个实施方案中,组合物包括乙烯基封端的硅氧烷流体,氢官能化的硅氧烷流体; 赋予固化弹性体耐油性的基本填料和加成固化催化剂。 在本发明的另一个实施方案中,组合物包括羟基封端的二有机聚硅氧烷,沉淀碳酸钙,至少约5重量%的包含平均粒径为约0.5μm至约1.5μm的氧化镁颗粒的组合物和 约50M2 / g至约175M2 / g的平均表面积和交联剂。