Claims
- 1. An aqueous surfactant structured liquid detergent concentrate comprising from 0-10% by volume suspended solid material and further comprising:
- (a) at least 15% by weight of detergent active material, said material comprising:
- (A) a nonionic surfactant or a polyalkoxylated anionic surfactant or mixture thereof; and
- (B) a non-polyalkoxylated anionic surfactant;
- wherein the weight ratio of component (A) to component (B) is from 2.8:1 to 1:4;
- (b) from 1 to 30% of a salting out electrolyte;
- (c) from 0.1 to 20% by weight of a viscosity reducing water soluble polymer, which polymer is a polyethylene glycol polymer, in an amount sufficient to reduce the viscosity by more than 5% when measured at a shear rate of 21s.sup.-1 and in comparison with a composition identical except that all such polymer is omitted, said polymer having an electrolyte resistance (as hereinbefore defined) of more than 5 grams sodium nitrilotriacetate in 100 ml of a 5% by weight aqueous solution thereof, with the system adjusted to neutral pH, and said polymer having a vapour pressure in 20% aqueous solution equal to or less than the vapour pressure of a reference 2% by weight or greater aqueous solution of a polyethylene glycol having an average molecular weight of 6000;
- said viscosity reducing polymer having a molecular weight of at least 1,000;
- and the composition comprising no, or less than 5% by weight of a swelling clay and yielding no more than 2% phase separation upon storage at 25.degree. C. for 21 days and having a viscosity of no greater than 1000 mPas at a shear rate of 21s.sup.-1.
- 2. A composition according to claim 1, wherein the electrolyte resistance of the polymer is more than 10 grams sodium nitrilotriacetate.
- 3. A composition according to claim 2, wherein said electrolyte resistance of the polymer is more than 15 grams sodium nitrilotriacetate.
- 4. A composition according to claim 1, wherein the concentration of the reference solution is 10% by weight.
- 5. A composition according to claim 4, wherein the concentration of the reference solution is 18% by weight.
- 6. A concentrate according to claim 1, wherein the amount of the polymer is from 0.1 to 2.5% by weight.
- 7. A concentrate according to claim 6, wherein the amount of the polymer is from 0.5 to 1.5% by weight.
- 8. A concentrate according to claim 1, wherein the average molecular weight of the polymer is at least 2000.
- 9. A concentrate according to claim 8, wherein the average molecular weight of the polymer is at least 5000.
- 10. A concentrate according to claim 1, wherein the suspended solid material comprises a substantially water-insoluble bleach.
- 11. A concentrate according to claim 10, wherein the bleach comprises DPDA.
- 12. A concentrate according to claim 1, wherein the detergent active material is at least 20% by weight of the total composition.
- 13. A concentrate according to claim 12, wherein the detergent active material is at least 25% by weight of the total composition.
- 14. A concentrate according to claim 1, having a viscosity of no greater than 850 mPaS at a shear rate of 21 s.sup.-1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8718217 |
Jul 1987 |
GBX |
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Parent Case Info
This is a continuation application of Ser. No. 224,518 filed Jul. 26, 1988 now U.S. Pat. No. 5,006,273.
US Referenced Citations (9)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2138037 |
Oct 1984 |
GBX |
2168717 |
Jun 1986 |
GBX |
Continuations (1)
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Number |
Date |
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Parent |
224518 |
Jul 1988 |
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