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    • 4. 发明授权
    • Styrene-butadiene interpolymer latex based cement additives containing a
silane
    • 含有硅烷的苯乙烯 - 丁二烯互聚物胶乳基水泥添加剂
    • US4151150A
    • 1979-04-24
    • US865068
    • 1977-12-27
    • James PetersVictor E. Meyer
    • James PetersVictor E. Meyer
    • C04B24/42C04B28/04C08L9/08
    • C04B28/04C04B24/42
    • Cement compositions having improved strength and enhanced adhesion to siliceous substrates are obtained by admixing Portland cement with a cement additive comprising (1) a styrene-butadiene interpolymeric latex containing up to about 60 parts by weight of interpolymer solids, said latex being present in an amount sufficient to provide from about 5 to about 25 parts by weight of latex polymer solids based on the weight of cement and (2) from about 0.05 to about 3 parts by weight of latex solids of a silane of the formula ZSi(OR').sub.3 wherein Z is a member selected from the group consisting of hydrocarbon groups and substituted hydrocarbon groups in which the substituent is bonded to the silicon atom through at least one carbon atom, and R' is selected from the group consisting of alkyl radicals of from 1 to 3 carbon atoms, --CH.sub.2 CH.sub.2 OR" and --CH.sub.2 CHOH where R" is an aliphatic hydrocarbon radical of 1 to 3 inclusive carbon atoms.
    • 通过将波特兰水泥与水泥添加剂混合得到水泥组合物,该水泥组合物包含(1)含有至多约60重量份互聚物固体的苯乙烯 - 丁二烯共聚物胶乳,所述胶乳的存在量为 足以提供基于水泥重量约5至约25重量份的胶乳聚合物固体和(2)约0.05至约3重量份胶体固体的式ZSi(OR')3的硅烷 其中Z是选自烃基和取代烃基的成员,其中取代基通过至少一个碳原子与硅原子结合,R'选自1〜 3个碳原子,-CH 2 CH 2 OR“和-CH 2 CHOH,其中R”是1至3个碳原子的脂族烃基。