US 4,308,158 AGranted

Detergent and cleaning compositions containing polymeric phosphate builders

AssigneeHoechst Aktiengesellschaft

InventorsWerner Gohla, Klaus Hestermann, Joachim Kandler, Horst-Dieter Wasel-Nielen, Karl Merkenich

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Abstract

The invention provides cleaning and detergent compositions containing about: 5 to 30 weight % of a surfactant and 10 to 30 weight % of a builder mixture consisting of alkali metal orthophosphate, alkali metal pyrophosphate, alkali metal tripolyphosphate and alkali metal melt phosphate, wherein the ratio by weight of the sum of orthophosphate, pyrophosphate and tripolyphosphate to melt phosphate is about 30:1 to 1:30, the ratio by weight of orthophosphate to pyrophosphate is about 10:1 to 1:10, and the ratio by weight of orthophosphate to tripolyphosphate is about 20:1 to 1:20, the balance being detergent auxiliaries and addends.

Claims6

Dependent claims

Detergent and cleaning composition containing about

5 to 30 weight % of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and amphoteric detergents
3 to 8 weight % of alkali metal orthophosphate,
0.5 to 1 weight % of alkali metal pyrophosphate,
1 to 5 weight % of alkali metal tripolyphosphate, and
20 to 25 weight % of a phosphate having a degree of condensation higher than 3 and containing 4 to 1000 PO.sub.3 units in the molecule as builder mixture, the balance being detergent auxiliaries and addends comprising alkali metal or ammonium salts of sulfuric acid, silicic acid, carbonic acid, boric acid, bleaching agents, stabilizers for peroxide compounds and water soluble organic complex formers.

2 more elements

Dependencies are inferred from the claim text.