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    • 7. 发明授权
    • Process for preparing elastomers
    • 制备弹性体的方法
    • US4013611A
    • 1977-03-22
    • US589282
    • 1975-06-23
    • Wolfgang HechtlErnst WohlfarthAlois Strasser
    • Wolfgang HechtlErnst WohlfarthAlois Strasser
    • C08L83/00C08J3/20C08L83/04C08L83/07
    • C08L83/04C08G77/12C08G77/16C08G77/20C08G77/24C08G77/44C08G77/70
    • An improved process for preparing compositions capable of being converted into elastomers containing (A) triorganosiloxy-terminated diorganopolysiloxanes having at least one vinyl group in each terminal unit, (B) triorganosiloxy-terminated organopolysiloxanes containing organohydrogensiloxane units and diorganosiloxane units, (C) fillers which are hydrophobic or are capable of being rendered hydrophobic and having a surface area of at least 50 m.sup.2 /g and (D) catalysts which promote the addition of SiH groups to vinyl groups which comprises mixing organopolysiloxanes (B) containing organohydrogensiloxane (SiH) units with at least 75 percent by weight of the fillers (C) having a surface area of at least 50 m.sup.2 /g before mixing with the organopolysiloxanes (A) having triorganosiloxy-terminal units with at least one vinyl group in each terminal unit.
    • 一种制备组合物的改进方法,其能够转化为含有(A)在每个末端单元中具有至少一个乙烯基的三有机甲硅烷氧基封端的二有机聚硅氧烷的弹性体,(B)含有机氢硅氧烷单元和二有机硅氧烷单元的三有机甲硅烷氧基封端的有机聚硅氧烷,(C) 是疏水性的或能够疏水化并且具有至少50m 2 / g的表面积和(D)促进向乙烯基中加入SiH基团的催化剂,其包括将含有机氢硅氧烷(SiH)单元的有机聚硅氧烷(B)与 在与每个末端单元中具有至少一个乙烯基的三有机甲硅烷氧基 - 末端单元的有机聚硅氧烷(A)混合之前,至少75重量%的表面积为至少50m 2 / g的填料(C)。