Patent ID: 6326447
Filing Date: 2001-12-04
Classification: C08F,C08L,D06M

Abstract:
A copolymer composition comprising monomers copolymerized in the following percentages by weight:(a) from about 30% to about 49% of at least one monomer of formula I:R.sub.f --Q--A--C(O)--C(R).dbd.CH.sub.2 IwhereinR.sub.f is a straight or branched-chain perfluoroalkyl group of from 2 to about 20 carbon atomsR is H or CH.sub.3,A is O, S or N(R'), wherein R' is H or an alkyl of from 1 to about 4 carbon atoms,Q is alkylene of 1 to about 15 carbon atoms, hydroxyalkylene of 3 to about 15 carbon atoms, --(C.sub.n H.sub.2n)(OC.sub.q H.sub.2q).sub.m --, --SO.sub.2 --NR'(C.sub.n H.sub.2n)--, or--CONR'(C.sub.n H.sub.2n)--, wherein R' is H or an alkyl of from 1 to about 4 carbon atoms, n is 1 to about 15, q is 2 to about 4, and m is 1 to about 15;(b) from about 10% to about 70% of at least one monomer or a mixture of monomers selected from formula IIA, formula IIB, and formula IIC:(R.sub.1).sub.2 N--(CH.sub.2).sub.r --Z--C(O)--C(R.sub.2).dbd.CH.sub.2 IIA(O)(R.sub.3)(R.sub.4)N--(CH.sub.2).sub.r --Z--C(O)--C(R.sub.2).dbd.CH.sub.2 IIBX.sup.- (R.sub.5)(R.sub.4)(R.sub.3)N.sup.+ --(CH.sub.2).sub.r --Z--C(O)--C(R.sub.2).dbd.CH.sub.2 IICwhereinZ is --O-- or --NR.sub.5 --; R.sub.1 is an alkyl group of from 1 to about 3 carbon atoms; R.sub.2 is H or an alkyl radical of 1 to about 4 carbon atoms; R.sub.3 and R.sub.4 are each an alkyl of 1 to 4 carbon atoms, hydroxyethyl, benzyl, or R.sub.3 and R.sub.4 together with the nitrogen atom form a morpholine, pyrrolidine, or piperadine ring; R.sub.5 is H or an alkyl of 1 to 4 carbon atoms, or R.sub.3, R.sub.4 and R.sub.5 together with the nitrogen atom form a pyridine ring; r is 2 to 4; and wherein for formula IIA the nitrogen is from about 40% to 100% salinized; and,(c) from about 1% to about 7% of a monomer of the formula III, IV, V, or VI or a mixture thereof: ##STR6## Cl--CH.sub.2 --CH(OH)CH.sub.2 --O--C(O)--C(R.sub.2).dbd.CH.sub.2 IV;(R.sub.6)OC(O)C(R.sub.6).dbd.CH.sub.2 V;orCH.sub.2.dbd.CCl.sub.2 VIwhereineach R.sub.2 is independently H or an alkyl radical of 1 to about 4 carbon atoms and each R.sub.6 is independently H or an alkyl of 1 to about 8 carbon atoms,said copolymer composition being self-dispersed and imparting soil release properties to fabrics and fabric blends treated therewith.