Production of detergent compositions

US4283299A · kind A · utility

Assignee

• Lever Brothers Company · US

Inventors

• Gert Becker · Bremen, DE
• Johann U. Oesch · Hockenheim, DE
• Horst Poeselt · Bensheim, DE
• Alan Digby Tomlinson
• Kurt Walz · Hagenbach, DE

Key dates

• Filing date: Oct 1, 1979
• Grant date: Aug 11, 1981
• Expiry date: Oct 1, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/062
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Particulate alkaline detergent compositions for fabric washing, which include synthetic detergent compounds and alkali metal tripolyphosphate and alkali metal orthophosphate detergency builders, are made by spray-drying a detergent base powder containing some or all of the detergent compounds and some or all of the orthophosphate and admixing at least 2.5% by weight of the tripolyphosphate in particulate form with the spray-dried base powder.