Patent ID: 7534837

Claim:
A random copolymer consisting of: (a) 1.0 mol % to 20 mol % 4-hydroxystyrene; (b) 0 mol % to 40 mol % one or more comonomers selected from the group consisting of: vinyl acetate, alkyl (meth)acrylic esters, acrylonitrile, maleic acid diesters, (meth)acrylic acids, maleic acid, maleic acid monoester, itaconic acid, fumaric acid, fumaric acid monoesters, glycidyl acrylate, glycidyl methacrylate, and glycidyl vinyl ether; and (c) 40 mol % to 99 mol % ethylene; wherein the total mol % of (a)-(c) is 100 mol % and the random copolymer has a melt index of 0.15 g/10 min to about 100 g/10 min as determined by ASTM method #D1238, condition 190/2.