Claims
- 1. A method of providing soil resistance and resistance to staining by acid dyes to a fiber substrate comprising application in a single step of an effective amount of a composition of a terpolymer having units of Formula I whereinX is a C2-10 alkyl, C6-12 aryl, or C4-12 alkoxy radical, d is from about 3 to about 50, R is a fluoroalkyl radical Rf—(A)v—(B)w—, Rf is a fully fluorinated straight or branched aliphatic radical optionally interrupted by at least one oxygen atom, A is a divalent radical selected from —SO2N(R″)—, —CON(R″)—, —S—, or —SO2—, where R″ is H, or a C1-6 alkyl radical, B is a divalent linear hydrocarbon radical —CtH2t—, where t is 1 to 12, Y is a divalent radical —CH2—O—, u, v, and w are each independently zero or 1, R′ is hydrogen or methyl, e is from about 0.05 to about 10, M is hydrogen, alkali metal, or ammonium, and f is from about 5 to about 40, said terpolymer being formed by polymerization of an aliphatic or aromatic alpha olefin or an alkyl vinyl ether, a non-hydrolyzable perfluoroalkyl substituted monomer and maleic anhydride, wherein the molar ratio of non-hydrolyzable perfluoroalkyl substituted monomer to maleic anhydride is from 0.01:1 to 0.25:1.
- 2. The method of claim 1 wherein the effective amount is from about 0.3% to about 3.0% of active ingredients on weight of fiber.
- 3. The method of claim 1 wherein the composition is applied simultaneously with at least one other stain resist chemical.
- 4. The method of claim 1 wherein the composition is applied in the presence of a surfactant at a pH of from about 1.5 to about 3.
- 5. The method of claim 1 wherein the composition is applied in situ to an installed carpet.
Parent Case Info
This is a division of application Ser. No. 09/099,990 filed Jun. 19, 1998, now U.S. Pat. No. 5,945,493.
US Referenced Citations (15)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0 306 992 |
Mar 1989 |
EP |
0 682 044 A1 |
Nov 1995 |
EP |
4-126709 |
Apr 1992 |
JP |