Surfactant ion pair fluorescent whitener compositions
US5057236A · kind A · utility
14Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1990 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Jun 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Optical brighteners (fluorescent whitener agents) can be made hypochlorite bleach resistant, stable and formulated into concentrated aqueous hypochlorite solutions and into detergent compositions in a manner whereby the whitener agent is transformed into a neutral ion-pair with a surface active quaternary ammonium ion-producing compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.