Patent ID: 7803873

Claim:
A process for making polyolefin graft polymers having improved adhesion properties comprising the steps of: a) contacting at least one polyolefin dissolved in a solvent with: i) a first phenolic ester monomeric compound having the structure as shown in Formula (I): wherein R=an alkyl group having from 1 to 20 carbon atoms, or phenyl; (ii) a second monomeric compound selected from the group consisting of styrene, diene monomers, acrylate monomers, and methacrylate monomers; and (iii) a radical initiator to form a reaction mixture; for a time and at a temperature sufficient to permit polymerization and the formation of a polyolefin graft polymer comprising a phenolic ester; said at least one polyolefin being selected from the group consisting of polyethylene, ethylene/propylene copolymer, ethylene/butene copolymer, ethylene/hexene copolymer, ethylene/octene copolymer, polypropylene, ethylene/methyl acrylate copolymer, ethylene/acrylic acid copolymer, ethylene/methacrylic acid copolymer, and ethylene/vinyl acetate copolymer; b) deacylating the phenolic ester comprised within the polyolefin graft polymer.