Patent ID: 7652112

Claim:
A polymer composition consisting essentially of monomers copolymerized in the following percentages by weight: (a) from about 5% to about 90% of a monomer of the formula I: R 1 —OC(O)—C(R)═CH 2 (I) (b) from about 5% to about 85% of vinylidene chloride, vinyl chloride, vinyl acetate, or a mixture thereof, (c) from about 0.5% to about 3% of a monomer of the formula II: HO—CH 2 —NH—C(O)—C(R)═CH 2 (II) (d) from about 0.5% to about 3% of a monomer of the formula III HO—CH 2 CH 2 —OC(O)—C(R)═CH 2 (III) and (e) from about 1% to about 5% of a monomer of the formula IV: H—(OCH 2 CH 2 ) m —O—C(O)—C(R)═CH 2 (IV) (f) from 0% to about 25% of methyl methacrylate, vinylbenzyl chloride, styrene or a mixture thereof, wherein each R is independently H or CH 3 ; R 1 is a linear or branched or cyclic alkyl chain having from about 4 to about 18 carbon atoms, and m is 2 to about 10, said composition increasing fluorine efficiency in treatment of a substrate by permitting use of lower levels of fluorinated surface treating agents providing durable oil repellency and water repellency, such that the fluorine content of a blend of said composition with a fluorinated surface treating agent is from about 1.5% to about 6.6% by weight of the blend.