Stable bleaching compositions containing fluorescent whitening agents
US5139695A · kind A · utility
5Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1991 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Mar 28, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06L4/657
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a stable aqueous hypochlorite solution which contains at least one specific fluroescent whitening agent of the bis(benzofuranyl) type, to the preparation thereof, and to the use of said composition for simultaneously bleaching and whitening materials in the home and in industry. These bleach solutions are stable for several months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.