Patent · US Expired

Phosphate-free textile detergent, especially for washing at temperatures of over 75.degree. C.

US4179391A · kind A · utility

14Cited by

10References

32Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

Jochen Kaufmann · Düsseldorf, DE
Markus Berg · Düsseldorf, DE
Peter Krings

Key dates

Filing date	Apr 17, 1978
Grant date	Dec 18, 1979
Priority date	—
Expiry date	Apr 17, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/36
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A pulverulent, phosphate-free textile detergent consisting essentially of: PA0 (a) from 20% to 40% by weight of a water-insoluble, finely-divided, crystalline alkali metal aluminosilicate having a calcium binding power of 50 to 200 mg of CaO/gm on the anhydrous basis; PA0 (b) from 5% to 20% of a surface-active compound of the anionic, nonionic, amphoteric or zwitterionic types; PA0 (c) from 0.05% to 0.75% by weight of a water-soluble substituted alkane diphosphonate or triphosphonic acid or alkali metal salts thereof; PA0 (d) from 10% to 35% by weight of an inorganic per compound; and PA0 (e) from 0 to 50% by weight of other conventional ingredients for detergents of the type; wash alkalis, soil suspension agents, optical brighteners, enzymes, antimicrobial agents, textile softeners, coloring compounds, perfumes, sodium sulfate and water.

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