Patent ID: 8058354

Claim:
A polyfunctional alcohol-modified carboxylated polyolefin, comprising the reaction product of: at least one carboxylated polyolefin prepared from a polyolefin having a heat of fusion of 0 to 10 calories/gram; and at least one amine-free polyfunctional alcohol, wherein the carboxylated polyolefin is the reaction product of: at least one polyolefin polymer selected from the group consisting of: ethylene copolymers prepared from ethylene and alpha olefins having 3 to about 10 carbon atoms; polypropylene; propylene copolymers containing ethylene or alpha olefins having from 4 to about 10 carbon atoms; poly(1-butene); propylene terpolymers prepared from ethylene and/or alpha olefins having from 4 to about 10 carbon atoms; and 1-butene copolymers prepared from 1-butene and ethylene or alpha olefins having 3 to about 10 carbon atoms; and at least one monomer selected from the group consisting of an unsaturated carboxylic acid ester, an unsaturated carboxylic acid, an unsaturated carboxylic anhydride, and an acrylic monomer, wherein said polyfunctional alcohol-modified carboxylated polyolefin comprises one or more pendant hydroxyl functional groups, and wherein the polyolefin polymer is an ethylene-propylene copolymer comprised of about 80 mole percent propylene and about 20 mole percent ethylene.