Curable silicone composition
    92.
    发明授权
    Curable silicone composition 失效
    可固化硅酮组合物

    公开(公告)号:US4985526A

    公开(公告)日:1991-01-15

    申请号:US518220

    申请日:1990-05-03

    CPC分类号: C08L83/08 C08G77/24 C08L83/12

    摘要: A curable silicone composition comprising;(a) an organopolysiloxane having at least two silicon-bonded C.sub.2 to C.sub.8 alkenyl groups and containing a particular silicon-bonded fluorine-containing substituent;(b) an organohydrogenpolysiloxane having at least three silicon-bonded hydrogen atoms and a particular silicon-bonded fluorine-containing substituent; and(c) a catalyst; the proportion of said silicon-bonded hydrogen atoms in Component (b) to said silicon-bonded alkenyl groups in Component (a) being at least 0.5. This composition can form a film, on various substrates, having good release properties, water repellency and oil repellency.

    Curable organopolysiloxane compositions
    93.
    发明授权
    Curable organopolysiloxane compositions 失效
    可固化的有机聚硅氧烷组合物

    公开(公告)号:US4208312A

    公开(公告)日:1980-06-17

    申请号:US946171

    申请日:1978-09-27

    摘要: Organopolysiloxane compositions are provided which are curable by condensation reaction taking place between a first component, hydroxy-terminated diorganopolysiloxane and a second component, organohydrogenpolysiloxane by aid of a third component, a condensation catalyst, and which are made to have their pot life extended by adding a fourth component, acyloxysilane, optionally in combination with a carboxylic acid, as a condensation retarder. The addition of the retarder does not adversely effect the curing velocity of the composition even at an elevated temperature and the properties of the cured composition.

    摘要翻译: 提供的有机聚硅氧烷组合物可通过在第一组分,羟基封端的二有机聚硅氧烷和第二组分之间进行缩合反应而固化,有机氢聚硅氧烷借助于第三组分,缩合催化剂,并且通过加入 第四组分,任选与羧酸组合的酰氧基硅烷作为缩合缓凝剂。 延迟剂的添加即使在升高的温度下也不会对组合物的固化速度产生不利影响,并且固化的组合物的性质也不会受到影响。