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    • 3. 发明授权
    • Organopolysiloxane compositions which are stable under anhydrous
conditions and elastomers formed therefrom
    • 在无水条件下稳定的有机聚硅氧烷组合物和由其形成的弹性体
    • US4460761A
    • 1984-07-17
    • US466255
    • 1983-02-14
    • August SchillerNorman Dorsch
    • August SchillerNorman Dorsch
    • C09K3/10C08G77/38C08K5/57C08L83/00C08L83/04C08L101/10C08G77/06
    • C08K5/57
    • Compositions which are stable when stored under anhydrous conditions, but which crosslink to form elastomers when exposed to moisture at room temperature are prepared by mixing (1) a diorganopolysiloxane having terminal condensable groups, with (2) a silicon compound containing at least three groups per molecule selected from amino groups which are bonded to silicon via nitrogen, oxime groups which are bonded to silicon via oxygen or mixtures thereof and (3) a product which is obtained from the reaction of (a) a silane containing as hydrolyzable groups at least two monovalent hydrocarbon radicals per molecule which are bonded to silicon via oxygen in which the monovalent hydrocarbon radicals may be interrupted by at least one ether-oxygen, or an oligomer thereof, with (b) a diorganotin diacylate, in which all the valences of the tin atom in the reaction product are saturated by SnC-bonded monovalent radicals or by oxygen atoms of the .tbd.SiOSn.tbd. group.
    • 通过将(1)具有末端可缩合基团的二有机基聚硅氧烷与(2)含有至少三个基团的硅化合物混合,制备在室温下暴露于水分时交联形成弹性体时稳定的组合物 选自经由氮键合到硅的氨基的分子,通过氧或其混合物与硅键合的肟基和(3)从(a)含有至少两个可水解基团的硅烷的反应得到的产物 通过氧,其中单价烃基可以被至少一个醚 - 氧或其低聚物与(b)二有机锡二酰化物中间体的氧连接到硅上,每分子中的单价烃基,其中锡的全部化合价 反应产物中的原子被SnC键合的一价基团或3BOND SiOSn 3BOND基团的氧原子饱和。