Patent ID: 6492470
Filing Date: 2002-12-10
Classification: C08F

Abstract:
An unsaturated acrylic polymer represented by the formula: wherein X is an ethylene having a pendent ester group without any polymerizable double bonds represented by the formula â€”C(O)â€”Oâ€”R9 in which R9 is an aliphatic group having from 1 to 20 carbon atoms; Y is a divalent saturated aliphatic group; R1 divalent, aliphatic saturated hydroxyl-containing group; R2 hydrocarbyl group with at least one polymerizable carbonâ€”carbon double bond; R3 is a hydrocarbyl group having 2 to 14 carbon atoms and not having a polymerizable carbonâ€”carbon double bond; m is a number in the range from 1 to 10; n is a number in the range from 1 to 10; n/m is in the range from about 1 to 5; and the polymer has a number average molecular weight of at least 2,500, and a color of about 2 or less on a Gardner color scale; and formed by the polymerization in the presence of a polymerization initiator selected from the group consisting of azo compounds and organic peroxides.