Patent ID: 7279541

Claim:
A polymer, comprising polymerized units of: from 5 to 9% by weight of vinyl acetate monomer (a); from 2 to 3.5% by weight of a monomer (b) selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, and maleic anhydride; from 30 to 60% by weight of at least one monomer (c) selected from the group consisting of ethlacrylate and methyacrylate; from 0 to 8% by weight of a vinylaromatic monomer (d) having a solubility of less than 5 g/l water; from 30 to 57.5% by weight of at least one C 1 to C 20 alkyl (meth)acrylate monomer (e) selected from the group consisting of n-butylacrylate and 2-ethylhexylacrylate; and from 0 to 10% by weight of at least one further monomer (f) other than monomers (a) to (e); wherein the polymer does not comprise crosslinking monomers.