Durable, yellowing arm water - and oil - repelling agents for textiles

摘要

A copolymer comprising monomers copolymerized in the following percentages by weight:(a) from about 40% to about 75% of a monomer of formula I: Rf-CH2CH2-OC(O)-C(R)=CH2, (b) from about 15% to about 55% of a monomer of formula II: R2-OC(O)-C(R)=CH2, (c) from 1.5% to about 5% of a monomer of the formula III: HO-CH2CH2-OC(O)-C (R) =CH2, (d) from 1.5% to about 5% of a monomer of the formula IV: H-(OCH2CH2)m-O-C(O)-C(R)=CH2, (e) from 1% to about 3% of a monomer of the formula V: HO-CH2-NH-C(O)-C (R)=CH2, (f) from 0% to about to about 9.8% of vinylidene chloride, vinyl acetate, or a mixture thereof, (g) from 0% to about 2% of a blocked isocyanate, wherein Rf is a straight or branched-chain perfluoroalkyl group of from 2 to about 20 carbon atoms, each R is independently H or CH3, R2 is an alkyl chain from 2 to about 18 carbon atoms; and m is 2 to about 10, is disclosed.