FLUOROPOLYMER COMPOSITIONS AND METHOD OF USE

摘要

A composition comprising monomers copolymerized in the following percentages by weight: (a) from about 20 % to about 95 % of a monomer, or mixture of monomers, of formula (I): R_f(CH₂CF₂)_q(CH₂CH₂)_r-Z-C(O)-C(R)=CH₂ (I) wherein q and r are each independently integers of 1 to 3; R_f is a linear or branched perfluoroalkyl group having 2 to 6 carbon atoms; Z is -O-, -NR¹- or -S-; R is hydrogen, C1, F or CH₃; R1 is hydrogen, or a C₁ to C₄ alkyl; and (b) from about 5 % to about 80 % of at least one of: (i) an alkyl (meth)acrylate monomer having a linear, branched or cyclic alkyl group of 6 to 18 carbons; or (ii) a monomer of formula (II): (R²)₂N-R³-O-C(O)-C(R)=CH₂ (II) wherein R is as defined above; each R² is independently a C₁ to C₄ alkyl; and R³ is a divalent linear or branched C₁ to C₄ alkylene; and wherein the nitrogen is from about 40% to 100% salinized; or (iii) a mixture thereof; said composition providing oil repellency, water repellency, and stain resistance to substrates contacted therewith; and a method for treating substrates with such copolymer compositions; are disclosed.