Concentrated detergent powder compositions
US5227084A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Apr 16, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3932
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Concentrated detergent powder compositions having a bulk density of above 600 g/l, preferably at least 610 g/l, more preferably from 650 g/l to 1200 g/l, and comprising a surfactant, a detergency builder, enzymes, a peroxygen compound bleach, and a manganese complex as effective bleach catalyst are disclosed. Specifically preferred manganese complexes are: PA1 1) [Mn.sup.IV.sub.2 (.mu.--O).sub.3 (Me--TACN).sub.2 ](PF.sub.6).sub.2 and PA1 2) [Mn.sup.IV.sub.2(.mu.--O).sub.3 (MeMe--TACN).sub.2 ](PF.sub.6).sub.2 Use of these catalysts can make the detergent powder more compact, i.e. reduce the pack volume, without loss of performance or even with a much better bleaching and washing powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.