Alkenyloxy silicon compositions
    1.
    发明授权
    Alkenyloxy silicon compositions 失效
    烯氧基硅组合物

    公开(公告)号:US4079037A

    公开(公告)日:1978-03-14

    申请号:US744905

    申请日:1976-11-26

    CPC分类号: C08G77/20 C08G77/045

    摘要: Organosilicon compositions comprising at least one silicon-bonded alkenyloxy radical, such as vinyldimethylcarbonoxy, are disclosed. These unsaturated organosilicon compositions are useful as partial or complete replacements for the analogous organosilicon compositions bearing the well-known silicon-bonded vinyl radical. In particular, vinyldimethylcarbinoxy-endblocked polydimethylsiloxane is useful as a component in an elastomeric composition which is cured with an organosilicon hydride.

    摘要翻译: 公开了包含至少一个硅键合的烯氧基的有机硅组合物,例如乙烯基二甲基羰氧基。 这些不饱和有机硅组合物可用作具有公知的硅键合的乙烯基的类似有机硅组合物的部分或完全替代物。 特别地,乙烯基二甲基咔啉基封端的聚二甲基硅氧烷可用作用有机硅化合物固化的弹性体组合物中的组分。

    Method of preparing a platinum catalyst inhibitor
    3.
    发明授权
    Method of preparing a platinum catalyst inhibitor 失效
    铂催化剂抑制剂的制备方法

    公开(公告)号:US3933880A

    公开(公告)日:1976-01-20

    申请号:US528961

    申请日:1974-12-02

    摘要: Continuously passing a mixture of an acetylenic alcohol and a siloxane compound having at least three silicon-bonded hydrogen atoms bonded to at least three different silicon atoms in the presence of a platinum catalyst through a heating means wherein the mixture is heated above 100.degree.C. and above the temperature at which the olefinic siloxane compound product is no longer an inhibitor for the reaction and wherein the reactants and products are maintained under sufficient pressure to keep the mixture in a liquid state at least until the mixture has passed through the heating means provides an olefinic siloxane compound which, below 100.degree.C, is an inhibitor for the reaction between the acetylenic alcohol, the siloxane compound having at least three silicon-bonded hydrogen atoms in the presence of platinum.

    摘要翻译: 在铂催化剂的存在下,通过加热装置连续通过具有至少三个与硅键合的氢原子至少三个与硅键合的氢原子键合的硅氧烷化合物的混合物,其中将混合物加热至100℃以上。 并且高于烯属硅氧烷化合物产物不再是反应的抑制剂的温度,并且其中反应物和产物保持在足够的压力下,以将混合物保持在液态至少直到混合物通过加热装置,提供 低于100℃的烯属硅氧烷化合物是在铂存在下具有至少三个与硅键合的氢原子的炔属醇之间的反应的抑制剂。

    Foamable polyorganosiloxane compositions
    4.
    发明授权
    Foamable polyorganosiloxane compositions 失效
    可发泡聚有机硅氧烷组合物

    公开(公告)号:US4555529A

    公开(公告)日:1985-11-26

    申请号:US747217

    申请日:1985-06-21

    IPC分类号: C08J9/14 C08L83/04

    摘要: Polyorganosiloxane foams are prepared by the volatilization of a blowing agent within a polyorganosiloxane composition that is curable by a hydrosilation reaction and includes as a foam stabilizer a resinous polyorganosiloxane comprising trimethylsiloxy units, SiO.sub.4/2 units and a specified class of fluorine-containing siloxane units.

    摘要翻译: 聚有机硅氧烷泡沫体是通过在聚有机硅氧烷组合物中挥发的可制备的聚有机硅氧烷组合物,其通过硅氢化反应可固化,并且包括作为泡沫稳定剂的包含三甲基甲硅烷氧基单元,SiO 4/2单元和特定类别的含氟硅氧烷单元的树脂状聚有机硅氧烷。

    High strength, extrudable silicone elastomer compositions
    5.
    发明授权
    High strength, extrudable silicone elastomer compositions 失效
    高强度,可挤出的硅橡胶组合物

    公开(公告)号:US4162243A

    公开(公告)日:1979-07-24

    申请号:US904176

    申请日:1978-05-08

    IPC分类号: C08L83/00 C08L83/04 C08L83/07

    摘要: A composition curable to a silicone elastomer is prepared by mixing a triorganosiloxy endblocked polydimethylsiloxane fluid where the triorganosiloxy is dimethylvinylsiloxy or methylphenylvinylsiloxy, a reinforcing silica having a surface treated organosiloxane groups which contain 0.05 to 0.32 percent by weight vinyl, a fluid organohydrogensiloxane, a platinum catalyst and optionally a platinum catalyst inhibitor. The polydimethylsiloxane fluid has a major peak molecular weight of 68,000 to 135,000, a dispersity index greater than 3.8, the lowest molecular weight species between 854 and 3146 and the highest molecular weight species between 174,000 and 370,000. These compositions are readily extrudable under low pressure and cure to high strength elastomers with a high durometer.

    摘要翻译: 通过混合三有机甲硅烷氧基封端的聚二甲基硅氧烷流体,其中三有机甲硅烷氧基是二甲基乙烯基甲硅烷氧基或甲基苯基乙烯基甲硅烷氧基,具有表面处理的有机硅氧烷基团的增强二氧化硅,其含有0.05至0.32重量%的乙烯基,流动有机氢硅氧烷,铂催化剂 和任选的铂催化剂抑制剂。 聚二甲基硅氧烷流体的主峰分子量为68,000至135,000,分散指数大于3.8,最低分子量物种在854和3146之间,最高分子量物种在174,000和370,000之间。 这些组合物在低压下易于挤出并固化成具有高硬度的高强度弹性体。

    Tube method for the preparation of olefinic siloxane compounds
    8.
    发明授权
    Tube method for the preparation of olefinic siloxane compounds 失效
    管法制备烯属硅氧烷化合物

    公开(公告)号:US3933882A

    公开(公告)日:1976-01-20

    申请号:US528960

    申请日:1974-12-02

    摘要: A vaporized mixture of a platinum catalyst in the amount of 0.01 to 2 p.p.m. platinum, an acetylenic alcohol and a siloxane compound having at least three silicon-bonded hydrogen atoms per molecule is passed through a tube such as a stainless steel tube heated at 210.degree.C. to 450.degree.C. to produce an olefinic siloxane compound which is, below 100.degree.C., an inhibitor for the reaction between the acetylenic alcohol and the siloxane compound having at least three silicon-bonded hydrogen atoms in the presence of platinum.

    摘要翻译: 铂催化剂的蒸发混合物的量为0.01至2p.p.m。 铂,炔属醇和每分子具有至少三个与硅键合的氢原子的硅氧烷化合物通过诸如加热至210℃至450℃的不锈钢管的管以产生烯属硅氧烷化合物,其为 在100℃以下,在铂存在下,具有至少三个与硅键合的氢原子的炔属醇与硅氧烷化合物之间的反应的抑制剂。