Mercaptosilane polymer mixture

摘要

The invention relates to mercaptosilane-polymer blends comprising at least one mercaptosilane of the general formula I;
and at least one polymer selected from the group of polypropylene, polyethylene and ethylene-vinyl acetate. They are produced by mixing the mercaptosilane of the general formula I with the polymer.
;They can be used in rubber mixtures.

主权项

1. A mercaptosilane-polymer blend, comprising at least one mercaptosilane of formula I: wherein R1 is an alkyl polyether group —O—(R5—O)m—R6, where R5 is identical or different and is a branched or unbranched, saturated or unsaturated, aliphatic divalent C1-C30 hydrocarbon group, m is on average from 1 to 30, and R6 comprises at least 1 C atom and is an unsubstituted or substituted, branched or unbranched monovalent alkyl, alkenyl, aryl or aralkyl group, R2 is identical or different and is an R1, C1-C12 -alkyl or R7O group, where R7 is H, methyl, ethyl, propyl, C9-C30 branched or unbranched monovalent alkyl, alkenyl, aryl, or aralkyl group or (R8)3Si group, where R8 is C1-C30 branched or unbranched alkyl or alkenyl group, R3 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic divalent C1-C30 hydrocarbon group, and R4 is H, CN or (C═O)—R9, where R9 is a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic/aromatic monovalent C1-C30 hydrocarbon group; and at least one polymer selected from the group consisting of polypropylene, polyethylene, and mixtures thereof.