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Ambient temperature curing coating composition comprising a polysiloxane and an acrylic polymer
Ambient temperature curing coating composition comprising a polysiloxane and an acrylic polymer
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机译:包含聚硅氧烷和丙烯酸类聚合物的常温固化涂料组合物
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摘要
Disclosed is an ambient temperature curing coating composition comprising: - a branched alkoxy-functional polysiloxane having the formula: R2-O-[Si(R1)2-O]n-R2, wherein each R1 is selected from the group consisting of alkyl, aryl, and alkoxy groups having up to six carbon atoms, and OSi(OR3)3 groups, wherein each R3 independently has the same meaning as R1, each R2 is selected from the group consisting of hydrogen and alkyl and aryl groups having up to six carbon atoms, and wherein n is selected such that the molecular weight of the polysiloxanes is in the range of from 500 to about 2,000; - an amini-functional catalyst; and - an acrylic polymer which is substantially free of functional groups that can react with the polysiloxane or with the catalyst in the coating composition, wherein said coating composition comprises more than 60% by weight solids.
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