Patent · US Expired

Detergent compositions

US4325829A · kind A · utility

10Cited by

0References

7Claims

0Family size

Assignee

Lever Brothers Company · US

Inventors

Peter M. Duggleby · Bebington, GB
Bernhard Kueter · Heidelberg, DE
Ronald M. Morris · Milano, IT
Horst Poeselt · Bensheim, DE
Hermann Rabitsch · Mannheim, DE
Reginald V. Scowen · Bebington, GB

Key dates

Filing date	Nov 10, 1980
Grant date	Apr 20, 1982
Priority date	—
Expiry date	Nov 10, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D9/14
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A particulate detergent composition for fabric conditioning includes, in addition to a detergency active material, from 10-40% of a mixture of tripolyphosphate and orthophosphate in the ratio of 20:1 to 3:1 together with 2-25% of a mixture of soap and an anionic polyelectrolyte in the ratio of 10:1 to 1:1. Any pyrophosphate present must be kept below 5%. The soap and polyelectrolyte result in reduced deposition of inorganic materials onto the fabrics. The preferred polyelectrolyte is sodium polyacrylate with a molecular weight of about 27,000. The composition may also include conventional additional ingredients.

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