Automatic dishwashing compositions comprising cobalt chelated catalysts
US6020294A · kind A · utility
19Cited by
49References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1999 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt chelated catalysts having the formula: EQU [Co.sub.n L.sub.m X.sub.p ].sup.z Y.sub.z. Preferred automatic dishwashing compositions comprise amylase and/or protease enzymes. Included are methods for washing tableware in domestic automatic dishwashing appliances using the cobalt catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.