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Vinyl-containing silanol-terminated silicone compositions for treatment of fillers
Vinyl-containing silanol-terminated silicone compositions for treatment of fillers
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机译:用于填料处理的含乙烯基硅烷醇封端的有机硅组合物
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摘要
A composition is provided for treating silica filler in-situ, comprising a silanol-terminated, vinyl-containing polydiorganosiloxane having the general formula: ##STR1## wherein R is a monovalent substituted or unsubstituted hydrocarbon radical; R.sup.1 is R or a halogenated alkyl radical; R.sup.2 is R or a halogenated alkyl radical; "a" is a number in the range of from about 1 to about 30; "b" is a number in the range of from 0 to about 50; and "c" is a number in the range of from 4 to about 30; the vinyl content of the polydiorganosiloxane being in the range of from about 1 to about 20% by weight and the silanol content being in the range of from about 0.1 to about 6% by weight. Preferably, R and R.sup.1 are methyl, R.sup.2 is methyl or 3,3,3- trifluoropropyl, and b is 0.
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机译:提供了一种用于原位处理二氧化硅填料的组合物,该组合物包含具有以下通式的硅烷醇封端的含乙烯基的聚二有机硅氧烷:其中R为一价取代或未取代的烃基; R 1为R或卤代烷基。 R 2是R或卤代烷基。 “ a”是约1至约30范围内的数字; “ b”是0到约50范围内的数字; “ c”为4至约30范围内的数字;聚二有机硅氧烷的乙烯基含量在约1至约20%(重量)的范围内,而硅烷醇含量在约0.1至约6%(重量)的范围内。优选地,R和R 1是甲基,R 2是甲基或3,3,3-三氟丙基,b是0。
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