Liquid detergent compositions containing fluorescent whitening agents, polyvinyl pyrrolidone polymer or copolymer and silicic acid
US5167871A · kind A · utility
4Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | May 20, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are described novel storage-stable liquid detergent compositions which comprise PA0 0.001% to 0.2% of at least one water-insoluble or sparingly soluble fluorescent whitening agent, PA0 0.001% to 0.2% of at least one polymer and/or copolymer, and PA0 0.2% to 5% of at least one highly disperse silicic acid, and to the preparation thereof with the aid of an aqueous dispersion which contains the fluorescent whitening agent and the polymer components, and to the use thereof. When using these liquid detergent compositions for cleaning fabric, no bleach spots are formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.