Patent ID: 7411020

Claim:
A water-based release coating composition comprising water and solids, wherein the solids comprise a mixture of (A) from 0.1 to about 5 wt % of a fluoro(meth)acrylate (co)polymer or a fluorochemical urethane compound containing at least one fluorinated group having the formula —CF 2 ) n CF 3 , wherein n is an integer from 1 to 3; (B) from about 15 to about 50 wt % of a copolymer consisting of the reaction product of (a) from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms, (b) from about 3 to about 20 wt % of (meth)acrylic acid, (c) from about 20 to about 40 wt % acrylonitrile, and (d) from 0 to about 15 wt % of vinyl monomer, other than those monomers of a. through c. above; and (C) from 0 to about 84.5 wt % of an extender polymer wherein the wt %'s in said mixture are based on the total weight of solids in the release composition.