Thixotropic aqueous compositions containing long chain saturated

Details Thixotropic aqueous compositions containing long chain saturated Thixotropic aqueous compositions containing long chain saturated

1991-11-08

1995-05-09

Lieberman, Paul

Compositions

Electrolytes for electrical devices

252103, 25217414, 25217424, 25217425, 252135, 252156, 252109, C11D 104, C11D 312, C11D 337, C11D 304

Patent

active

054137276

ABSTRACT:
The physical stability of liquid gel-like compositions based on thixotropic thickener is greatly improved by incorporating in the composition small amounts of long chain fatty acids and salts thereof. The aqueous compositions containing inorganic builder salts and other functional inorganic salts, chlorine bleach, bleach stable detergent, at least one thixotropic thickener and a fatty acid or a metal salt of the fatty acid as a physical stabilizer exhibit a significant increase in apparent viscosity and remain stable against phase separation for an extended period of time. The thixotropic properties can be retained or improved using smaller levels of the thixotropic thickener than in the absence of the physical stabilizer. The stability, chlorine-bleach loss and cleaning ability of the compositions is further improved, when the composition pH is at least 11.2, when added to an aqueous wash both at a concentration of about 10 grams per liter. Use as liquid gel-like automatic dishwasher compositions are described.

REFERENCES:
patent: 3956158 (1976-05-01), Donaldson
patent: 4226736 (1980-10-01), Bush et al.
patent: 4240919 (1980-12-01), Chapman
patent: 4752409 (1988-07-01), Drapier et al.
patent: 4801395 (1989-01-01), Chazard et al.
patent: 4824590 (1989-04-01), Roselle

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