Patent ID: 7417009

Claim:
A paraffin inhibitor comprising a polymer consisting of (a) about 1 to about 98 weight percent of one or more C 1 -C 30 alkyl esters of acrylic acid; (b) about 1 to about 98 weight percent of one or more C 6 -C 30 alkyl esters of methacrylic acid; and (c) about 1 to about 30 weight percent of one or more unsaturated monomers selected from the group consisting of styrene, vinyl acetate, maleic anhydride, vinyl cyclohexane, vinyl propionate and cinnamic acid C 1 -C 4 alkyl esters and wherein the alkyl ester portion of at least one of (a) or (b) is C 10 -C 30 alkyl.