Novel organosilicon compound and a room temperature curable
organopolysiloxane composition containing the same
    1.
    发明授权
    Novel organosilicon compound and a room temperature curable organopolysiloxane composition containing the same 失效
    新颖的有机硅化合物和含有它们的室温可固化的有机聚硅氧烷组合物

    公开(公告)号:US4587354A

    公开(公告)日:1986-05-06

    申请号:US591380

    申请日:1984-03-20

    IPC分类号: C07F7/21 C07F7/08 C07F7/10

    CPC分类号: C07F7/21 Y10S528/901

    摘要: The invention discloses a novel cyclic organopolysiloxane compound having one or more of 3,3,3-trifluoropropyl groups and one or more of alkenyloxy groups, e.g. isopropenyloxy group of the formula --O--C(CH.sub.3).dbd.CH.sub.2, each directly bonded to the silicon atom in a molecule. This novel organopolysiloxane compound is useful as a crosslinking agent for a hydroxy-terminated diorganopolysiloxane and a formulation of a room temperature curable organopolysiloxane composition capable of giving a rubbery elastomer by curing is proposed comprising, each in a limited proportion, (a) a hydroxy-terminated diorganopolysiloxane, (b) the above disclosed novel cyclic organopolysiloxane having 2 or 3 alkenyloxy groups, (c) a second cyclic organopolysiloxane having 2 or 3 alkenyloxy groups each directly bonded to the silicon atom in a molecule and (d) a guanidino-containing organosilicon compound, e.g. 3-(tetramethylguanidino)propyl trimethyl silane, as a curing accelerator. This room temperature curable composition exhibits excellent curability and free from the problem of the formation of noxious condensation products as in the conventional RTV silicone rubber compositions.

    摘要翻译: 本发明公开了一种具有一个或多个3,3,3-三氟丙基和一个或多个链烯氧基的新型环状有机聚硅氧烷化合物。 式-O-C(CH 3)= CH 2的异丙烯氧基,其分子中直接键合到硅原子上。 这种新的有机基聚硅氧烷化合物可用作羟基封端的二有机基聚硅氧烷的交联剂,并且提供能够通过固化产生橡胶状弹性体的室温可固化的有机基聚硅氧烷组合物的制剂,其包括以有限的比例(a)羟基 - (b)上述公开的具有2或3个烯氧基的新型环状有机聚硅氧烷,(c)具有2或3个烯氧基的第二环状有机聚硅氧烷,各自直接键合在分子中的硅原子上,(d)含胍基的 有机硅化合物,例如 3-(四甲基胍基)丙基三甲基硅烷作为固化促进剂。 这种室温固化性组合物显示出优异的固化性,并且不存在如常规RTV硅橡胶组合物中形成有害缩合产物的问题。