Patent · US Expired

Granular adsorbent having improved flushing properties

US5139693A · kind A · utility

12Cited by

9References

13Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Elmar Wilms · Dormagen, DE
Lothar Pioch · Goldkronach, DE
Guenther Vogt · Tönisvorst, DE

Key dates

Filing date	Dec 3, 1990
Grant date	Aug 18, 1992
Priority date	—
Expiry date	Dec 3, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D17/065
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A granular mixture produced by spray drying of PA0 (a) 45 to 75% by weight zeolite, PA0 (b) 1 to 6% by weight of a water soluble soap of substantially saturated C.sub.12-18 fatty acids, PA0 (c) 1 to 12% by weight homopolymers or copolymers of acrylic acid, methacrylic acid or maleic acid or water-soluble salts thereof, expressed as sodium salt, PA0 (d) 0 to 25% by weight sodium sulfate, PA0 (e) 0 to 5% by weight surfactants of the nonionic polyglycol ether derivative type, PA0 (f) 10 to 22% by weight water, has an average particle size of 0.2 to 1.2 mm and an apparent density of 350 to 680 g/l. The product, which may be used as a detergent additive, has a high adsorption capacity for liquid to paste-form detergent constituents, more particularly nonionic surfactants, and improved flushing behavior when used in domestic washing machines.

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