Patent ID: 6358892
Filing Date: 2002-03-19
Classification: C08F,C10L,C10M,C10N

Abstract:
A post-treated polymer prepared by treating a polymer with a cyclic carbonate or a linear mono- or poly-carbonate under reactive conditions, wherein said polymer is prepared by reacting a mixture under reactive conditions, wherein the mixture comprises:(a) an alkenyl or alkylsuccinic acid derivative, wherein the alkenyl or alkyl substituent has a Mn of from 1800 to 3000; (b) an unsaturated acidic reagent copolymer of (1) an unsaturated acidic reagent and (2) an olefin having an average of from 14 to 30 carbon atoms, wherein the copolymer has a Mn of from 2000 to 4800; and (c) a polyamine having at least three nitrogen atoms and 4 to 20 carbon atoms; and wherein said mixture contains from 1.5 to 10 equivalents of said alkenyl or alkylsuccinic acid derivative per equivalent of said unsaturated acidic reagent copolymer and from 0.4 to 1.0 equivalents of said polyamine per equivalent of alkenyl or alkylsuccinic acid derivative plus unsaturated acidic reagent copolymer.