| 主权项 |
1. A mixture composed of silicon-containing coupling reagents, wherein the mixture comprises both, (mercaptoorganyl)alkylpolyethersilanes containing silanol groups and (mercaptoorganyl)alkylpolyethersilanes free from silanol groups, in a ratio by weight of from 13:87 to 79:21,
wherein the (mercaptoorganyl)alkylpolyethersilanes containing silanol groups are compounds of the general formula I
(X)(X′)(X″)Si—RI—SH I, where, independently of one another, X is O—(CH2CH2O)5—C13H27, X′ is branched or unbranched alkyl, branched or unbranched alkoxy, a branched or unbranched C2-C25— alkenyloxy group, an alkylpolyether group O—((CRII2)w—O—)vAlk, where v=1-40, w=1-40, or a hydroxy group (—OH), RII, independently of one another, is H, or an unbranched or branched alkyl group, Alk is a branched or unbranched, saturated or unsaturated, substituted or unsubstituted, aliphatic, monovalent C1-C35-hydrocarbon group, X″ is a hydroxy group (—OH), and RI is a branched or unbranched, saturated or unsaturated, aliphatic, divalent C1-C30-hydrocarbon group, optionally having substitution, and wherein the (mercaptoorganyl)alkylpolyethersilanes free from silanol groups are compounds of the general formula II,
(X)(X′″)(X′″)Si—RI—SH II where, independently of one another, X and RI are defined as above, and X′″, independently of one another, is branched or unbranched alkyl, branched or unbranched alkoxy, a branched or unbranched C2-C25-alkenyloxy group, or the alkylpolyether group O—((CRII2)w—O—)vAlk, are reacted via water addition and/or additive addition. |
