Patent · US Expired

High performance detergent powders

US5670474A · kind A · utility

2Cited by

7References

22Claims

0Family size

Assignee

Lever Brothers Company, division of Conopco, Inc. · US

Inventors

Robert John Crawford · Bebington, GB
Alastair Richard Sanderson · Ellesmere Port, GB

Key dates

Filing date	Nov 30, 1995
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Nov 30, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D1/72
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A built particulate detergent composition for fabric washing, containing not more than 10 wt. % of water-insoluble builder and not more than 10 wt. % of water, contains a high level (40-90 wt. %) of a nonionic surfactant component consisting wholly or predominantly of a nonionic surfactant solid at ambient temperature, for example, alkylpolyglycoside or lactobionamide. Liquid nonionic surfactant and other cosurfactants may be present in limited amounts. A detergency builder is also present, the ratio of builder to nonionic surfactant not exceeding 1:1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.