Claims
- 1. An aqueous composition useful for imparting improved soil retardancy to a surface and adapted to modify a carpet shampoo, consisting essentially of: (1) a polymer component comprising an aqueous dispersion of a low molecular weight acrylic addition polymer consisting essentially of copolymerized units of (a) butyl acrylate, (b) styrene, (c) methyl methacrylate, and (d) an acid monomer selected from the group consisting of methacrylic acid, acrylic acid, itaconic acid and any mixture of two or more thereof, in the ratio by weight of a/b/c/d of 20-60/0-25/0-15/40-60, the polymer having a number average molecular weight of from about 2,500 to about 100,000; (2) polyvalent metal ions; (3) ammonia or a volatile amine in an amount effective to solubilize the polymer; and (4) optionally an anion in the form of CO.sub.3.sup..dbd., HCO.sub.3.sup.- or amino acid anion, in an amount effective to stabilize any complex formed with ingredients (2) and (3); the pka of the polymer component being less than about 6.7, there being no more than about 1 part of styrene to 1 part of butyl acrylate by weight, the pH of the composition being between about 7.5 and about 11, and there being at least about 0.8 equivalents of polyvalent metal ion per carboxyl group in the polymer and about 5-50% by weight of polymer solids in the composition.
- 2. The composition of claim 1 in which at least about 5% of styrene is present in the polymer, and the molecular weight of the polymer is about 10,000-70,000, there being at least 0.9 equivalents of polyvalent metal ion per carboxyl group in the polymer.
- 3. The composition of claim 2 wherein the equivalents of polyvalent metal ion per carboxyl group is 0.95.+-.0.05.
- 4. The composition of claim 2 in which the metal is zinc, an anion is present as HCO.sub.3.sup.-, the acid monomer in the polymer is methacrylic acid, and the viscosity of a 25% solids solution of the polymer in water, at 35.degree. C., containing at least two equivalents of ammonium cation and at least one equivalent of zinc as zinc oxide, is below about 3,500 centipoises.
- 5. The composition of claim 4 in which said viscosity is below about 1,500 centipoises.
- 6. An aqueous carpet shampoo consisting essentially of (A) a detergent effective for cleaning a carpet, and, (B) an aqueous modifier composition useful for imparting improved soil retardancy to a carpet, consisting essentially of: (1) a polymer component comprising an aqueous dispersion of a low molecular weight acrylic addition polymer consisting essentially of copolymerized units of (a) butyl acrylate, (b) styrene, (c) methyl methacrylate, and (d) an acid monomer selected from the group consisting of methacrylic acid, acrylic acid, itaconic acid and any mixture of two or more thereof, in the ratio by weight of a/b/c/d of 20-60/0-25/0-15/40-60, the polymer having a number average molecular weight of from about 2,500 to about 100,000; (2) polyvalent metal ions; (3) ammonia or a volatile amine in an amount effective to solubilize the polymer; and (4) optionally an anion in the form of CO.sub.3.sup..dbd., HCO.sub.3.sup.- or amino acid anion in an amount effective to stabilize any complex formed with ingredients (2) and (3); the pka of the aqueous polymer component being less than about 6.7, there being no more than about 1 part of styrene to 1 part of butyl acrylate by weight, the pH of the composition being between about 7.5 and about 11, and there being at least about 0.8 equivalents of polyvalent metal ion per carboxyl group in the polymer and about 5-50% polymer solids in composition (B); wherein the weight ratio of detergent (A) to the solids of composition (B) is between about 90:10 and about 1:99.
- 7. The shampoo of claim 6 in which at least about 5% styrene is present in the polymer and the molecular weight of the polymer is about 10,000-70,000, there being at least 0.9 equivalents of polyvalent metal ion per carboxyl group in the polymer, and the detergent is anionic.
- 8. The shampoo of claim 7 wherein the equivalents of polyvalent metal ion per carboxyl group is 0.95.+-.0.05.
- 9. The shampoo of claim 7 in which the metal is zinc, an anion is present as a HCO.sub.3.sup.-, the acid monomer in the polymer is methacrylic acid, and the viscosity is of a 25% solids solution of the polymer in water, at 35.degree. C., containing at least two equivalents of ammonium cation and at least one equivalent of zinc as zinc oxide, is below about 3,500 centipoises.
- 10. The composition of claim 9 in which said viscosity is below about 1,500 centipoises.
- 11. A method of cleaning a carpet comprising applying the shampoo of claim 6 to the carpet, and removing the residue including loosened soil.
- 12. A method of cleaning a carpet comprising applying the shampoo of claim 7 to the carpet, and removing the residue including loosened soil.
- 13. A method of cleaning a carpet comprising applying the shampoo of claim 9 to the carpet, and removing the residue including loosened soil.
- 14. The method of claim 11 wherein the shampoo applied to the carpet is dried on the carpet, and loose, dried shampoo is removed with said residue and soil.
- 15. A carpet cleaned by the method of claim 11, 12 or 13, said carpet containing a residuum of the shampoo effective to impart soil retardancy to said carpet.
BACKGROUND OF THE INVENTION
This application is a continuation-in-part of U.S. application Ser. No. 810,216 filed June 27, 1977 and abandoned as of the filing of this application.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
3723358 |
Morgan et al. |
Mar 1973 |
|
3994744 |
Anderle et al. |
Nov 1976 |
|
4002571 |
Anderle et al. |
Jan 1977 |
|
4013595 |
Podella et al. |
Mar 1977 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
810216 |
Jun 1977 |
|