| 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): Rf—(CH2CF2)q(CH2CH2)r—Z—C(O)—C(R)═CH2  (I) wherein q and r are each independently integers of 1 to 3; Rf is a linear or branched perfluoroalkyl group having 2 to 6 carbon atoms; Z is —O—, —NR1— or —S—; R is hydrogen, Cl, 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.
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