Patent ID: 6294628
Filing Date: 2001-09-25
Classification: C08F,C10M,C10N

Abstract:
A process for preparing a nitrogen containing copolymer comprising reacting in the presence of a free radical initiator(A) from about 30% to about 60% by weight of alkyl acrylate ester monomers containing from 1 to 11 carbon atoms in the alkyl group,(B) from about 40% to about 70% by weight of alkyl acrylate ester monomers containing from 12 to about 24 carbon atoms in the alkyl group; and(C) from about 0.5% to about 5% by weight of at least one nitrogen containing monomer selected from the group consisting of vinyl substituted nitrogen heterocyclic monomers, N,N-dialkylaminoalkyl acrylate monomers, N,N-dialkylaminoalkyl acrylamide monomers and tertiary alkyl acrylamides, provided that the total equals 100%, and optionally, in the presence of a chain transfer agent.