Abstract: A method of providing water repellency, oil repellency, soil resistance, soil release, stain resistance and stain release to substrates comprising contacting said substrate with a composition comprising a copolymer having repeating units of Formula 1 in any sequence: wherein Rf is a straight or branched perfluoroalkyl group having from about 2 to about 8 carbon atoms, or a mixture thereof, which is optionally interrupted by at least one oxygen atom, Q is alkylene of 1 to about 15 carbon atoms, hydroxyalkylene of 2 to about 15 carbon atoms, —O(CnH2n)—, —(CH2CF2)m(CH2)n—, —CONR1(CnH2n)—, —(CnH2n)OCONR1(CnH2n)—, (—CONR1CH2)2CH—, —SO2N(R1)(CnH2n)—, or —(CnH2n)SO2N(R1)(CnH2n)—, each R1 is independently H or alkyl of 1 to about 4 carbon atoms, each n is independently 1 to about 15, each m is independently 1 to about 4, Z is hydrogen or methyl, x is a positive integer, y is zero or a positive integer, t is a positive integer, and M is H+, alkali metal cation, alkaline earth metal cation, or ammonium.

Abstract: A compound comprising Formula I, or a mixture thereof, Rf—OCFHCF2O—[CH2CH2O]x—[C3H7O]y-A??Formula I wherein Rf is CnF2n+1, n is 1 to about 6, x is a mixture of positive integers and is 4 or greater, y is 0 to about 4, provided that the ratio of y to x is equal to or less than 0.25, A is RfOCHFCF2 or CmH2m+1, and m is 1 to about 24 and its use in lowering surface tension and imparting improved surface effects is disclosed.

Abstract: A method of providing water repellency, oil repellency, soil resistance, soil release, stain resistance and stain release to substrates comprising contacting said substrate with a composition comprising a copolymer having repeating units of Formula I in any sequence: wherein Rf is a straight or branched perfluoroalkyl group having from about 2 to about 8 carbon atoms, or a mixture thereof, which is optionally interrupted by at least one oxygen atom, Q is alkylene of 1 to about 15 carbon atoms, hydroxyalkylene of 2 to about 15 carbon atoms, —O(CnH2n)—, —(CH2CF2)m(CH2)n—, —CONR1(CnH2n)—, —(CnH2n)OCONR1(CnH2n)—, (—CONR1CH2)2CH—, —SO2N(R1)(CnH2n)—, or —(CnH2n)SO2N(R1)(CnH2n)—, each R1 is independently H or alkyl of 1 to about 4 carbon atoms, each n is independently 1 to about 15, each m is independently 1 to about 4, Z is hydrogen or methyl, x is a positive integer, y is zero or a positive integer, t is a positive integer, and M is H+, alkali metal cation, alkaline earth metal cation, or ammonium.

Abstract: A compound comprising Formula I, or a mixture thereof, Rf—OCFHCF2O—[CH2CH2O]x—[C3H7O]y-A ??Formula I wherein Rf is CnF2n+1, n is 1 to about 6, x is a mixture of positive integers and is 4 or greater, y is 0 to about 4, provided that the ratio of y to x is equal to or less than 0.25, A is RfOCHFCF2 or CmH2m+1, and m is 0 to about 24 and its use in lowering surface tension and imparting improved surface effects is disclosed.

Abstract: A compound comprising Formula I, or a mixture thereof, wherein Y is a bond or CmH2m?p(OA)p wherein m is 0 to 4, and p is 0 or 1, X? is X or H, X is CH2CH2OA, CH(CH2OA)2, C(CH2OA)3, or X and X? combine to form (CH2CH2)2NCH2CH2OA or (CH2CH2)2O, provided that when X and X? combine to form (CH2CH2)2O then Y is CH2CH(OA)CH2, A is CF2CFHO—Rf or H, Rf is CnF2n+1 wherein n is an integer of 1 to about 6, M is a cation having a charge equal to a, and a is a positive integer equal to 1 or 2, provided that at least one of X, X?, or Y contains A equal to CF2CFHO—Rf, and its use in lowering surface tension and imparting improved surface effects.