Low phosphate content dishwashing detergent

Details Low phosphate content dishwashing detergent Low phosphate content dishwashing detergent

1978-10-13

1980-11-11

Weinblatt, Mayer

Compositions

Electrolytes for electrical devices

252135, 25217414, 252DIG1, 252321, C11D 756, C11D 754

Patent

active

042331722

ABSTRACT:
A dry powder detergent composition suitable for machine dishwashing and which contains a low-phosphate content of from about 10 to about 20 weight percent utilizes, as the essential combination of components, an alkali metal tripolyphosphate or an alkali metal hexametaphosphate, an appropriate proportion of an alkali metal carbonate, and a mixture of a high-foaming nonionic surfactant with a foam reducing agent. The surfactant is preferably liquid and is sorbed on solid constituents of the composition to provide a detergent which exhibits superior performance in hard water notwithstanding the relatively low phosphate content of the composition. The nonionic surfactant mixture preferably further comprises an oil-soluble, nonionic surfactant.

REFERENCES:
patent: 3549539 (1970-12-01), Mallows
patent: 3899436 (1975-08-01), Copeland et al.
patent: 4049586 (1977-09-01), Collier

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