Quaternay oxaziridinium salts as bleaching compounds
US5370826A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Nov 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3927
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel bleach catalysts, a method for bleaching substrates using these catalysts and detergent compositions containing same are reported. The bleaches are of the quaternary oxaziridinium salt type. Substrates such as fabrics may be bleached in an aqueous solution containing the quaternary oxaziridinium salt. ##STR1## wherein: R.sup.4 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; PA1 R.sup.5 and R.sup.6 may be a substituted or unsubstituted radical selected from the group consisting of hydrogen, aryl, heterocyclic ring, alkyl, cycloalkyl, nitro, halo, cyano, alkoxy, keto, carboxylic and carboalkoxy radicals; and PA1 X.sup.- is a counterion stable in the presence of oxidizing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.