Laundry pretreatment with peroxide bleaches containing chelators for iron, copper or manganese for reduced fabric damage
US5929012A · kind A · utility
76Cited by
18References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Jan 23, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/722
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for pretreating soiled fabrics prior to washing with a liquid composition comprising a peroxygen bleach, a nonionic surfactant, an anionic surfactant and a compound chelating copper and/or iron and/or manganese is provided. The liquid composition used in such process is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.