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    • 5. 发明授权
    • Moisture-hardening one-component polysiloxane compositions
    • 水分硬化单组分聚硅氧烷组合物
    • US4870130A
    • 1989-09-26
    • US259785
    • 1988-10-19
    • Theo AchtenbergHans-Gerd MetzingerHans SattleggerKarl-Heinz SockelWilhelm Weber
    • Theo AchtenbergHans-Gerd MetzingerHans SattleggerKarl-Heinz SockelWilhelm Weber
    • C08K3/00C08K5/544C08K5/5455C08K5/56C08L83/04C08L83/06
    • C08K5/5455C08K5/54Y10S528/901
    • Polysiloxane compositions which harden in the presence of moisture by elimination of alcohols, which have high stability in storage while unvulcanized in the absence of moisture, which exhibit good adhesion to substrates, and which are improved by the presence of stabilizing silyl derivations of N-methyl benzamide contain:(A) 100 parts by weight of a polydimethyl siloxane which contains terminal diorganyloxyorganosilyl or triorganyloxylsilyl groups and which has a viscosity of 0.1 to 100 Pas,(B) 0 to 100 parts by weight of an .alpha.,.omega.-bis(trimethylsiloxy)-polydimethyl siloxane which has a viscosity of from 0.04 to 10 Pas,(C) 0 to 5 parts by weight of an alkoxysilane having the formulaR.sup.1.sub.a Si(OR.sup.2).sub.4-a, in whichR.sup.1 is C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl or C.sub.5 -C.sub.6 aryl;R.sup.2 is C.sub.1 -C.sub.6 alkyl, and a is 0 or 1,(D) 0.1 to 5 parts by weight of an aminoalkyl alkoxysilane containing one or more basic nitrogen atoms attached to a silicon atom through at least 3 carbon atoms,(E) 5 to 250 parts by weight of a reinforcing or non-reinforcing filler or filler mixture,(F) 0.01 to 2 parts by weight of an organometallic catalyst and(G) 0.5 to 5 parts by weight of an amidosilane of the formula ##STR1## in which each R.sup.3 is the same or different from any other R.sup.3 and is C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.5 -C.sub.6 aryl or unbranched or branched C.sub.1 -C.sub.6 alkoxy; X is a C.sub.1 -C.sub.4 alkyl; and b is 1 or 2.
    • 聚硅氧烷组合物在水分存在下通过消除醇而在没有水分的情况下在不含水分的情况下在不进行硫化的情况下具有高稳定性的醇,这些表现出对底物的良好粘附性,并且通过N-甲基稳定甲硅烷基衍生物 苯甲酰胺含有:(A)100重量份含有末端二羟基氧基有机甲硅烷基或三羟甲基氧基甲硅烷基的聚二甲基硅氧烷,其粘度为0.1〜100Pa·s,(B)0〜100重量份的α,ω-双(三甲基甲硅烷氧基 ) - 聚二甲基硅氧烷,其粘度为0.04〜10Pa·s,(C)0〜5重量份具有式R1aSi(OR2)4-a的烷氧基硅烷,其中R1为C1-C6烷基,C2-C6 烯基或C5-C6芳基; R2是C1-C6烷基,a是0或1,(D)0.1至5重量份含有至少3个碳原子连接到硅原子上的一个或多个碱性氮原子的氨基烷基烷氧基硅烷,(E)5 至250重量份的增强或非增强填料或填料混合物,(F)0.01至2重量份的有机金属催化剂和(G)0.5至5重量份式IMAIG的酰胺基硅烷 其中每个R 3与任何其它R 3相同或不同,并且为C 1 -C 6烷基,C 2 -C 6烯基,C 5 -C 6芳基或无支链或支链C 1 -C 6烷氧基; X是C 1 -C 4烷基; b为1或2。