An incrustation control composition comprising a polymer comprising groups with silyl ester functionality and quaternary ammonium / phosphonium groups

摘要

A polymer comprising: (a1) a silyl ester group (s), and (a2) a quaternary ammonium group (s) and / or a quaternary phosphonium group (s), said quaternary ammonium groups and / or quaternary phosphonium groups neutralized by counterions, wherein the counterions consist of the conjugate base of an acid having an aliphatic, aromatic or alkaryl hydrocarbyl group.