Patent · US Active

Bleaching-agent co-granules, method for producing said bleaching-agent co-granules, and use of said bleaching-agent co-granules

US9902922B2 · kind B2 · utility

1Cited by

4References

20Claims

0Family size

Assignee

WEYLCHEM WIESBADEN GMBH · DE

Inventors

Gerd Reinhardt · Kelkheim, DE
Michael Best · Dursley, GB
Miriam Ladwig · Dietzenbach, DE
Andreas Schottstedt · Hofheim, DE
Mathias Groeschen · Hadamar, DE
Sven Gebhard · Liederbach, DE

Key dates

Filing date	May 9, 2014
Grant date	Feb 27, 2018
Priority date	—
Expiry date	Aug 20, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D17/0091
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a bleaching-agent co-granule containing a bleach activator, a metal-containing bleach catalyst comprising at least one ligand from the group consisting of di- or trimethyltriazacyclononane and derivatives of these, and a homo- or copolymeric polycarboxylate or its salts or partial neutralizates having a pH in the range from 3 to 9. The bleaching-agent co-granule is obtained in an anhydrous granulating process, preferably by compaction at a temperature below 100° C. The invention also relates to the method of using the bleaching-agent co-granule in dishwasher detergents and to a detergent comprising said bleaching-agent co-granule.

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