Patent ID: 8013178

Claim:
A composition comprising a mixture of mercaptosilanes of formula I, wherein R 1 is an alkyl polyether group —O—(R 5 —O) m —R 6 , where R 5 is identical or different and is a branched or unbranched, saturated or unsaturated, aliphatic divalent C1-C30 hydrocarbon group, m is on average 5, and R 6 comprises at least 11 C atoms and is an unsubstituted or substituted, branched or unbranched monovalent alkyl, alkenyl, aryl or aralkyl group, and wherein one R 2 is an ethoxy group and the other R 2 is an R 1 , C1-C12 alkyl, or R 7 O group, where R 7 is H, ethyl, propyl, a C9-C30 branched or unbranched monovalent alkyl, alkenyl, aryl or aralkyl group or (R 8 ) 3 Si group, where R 8 is a C1-C30 branched or unbranched, alkyl or alkenyl group, R 3 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C1-C30 hydrocarbon group, and R 4 is H, CN or (C═O)—R 9 , where R 9 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic monovalent C1-C30 hydrocarbon group.