Water soluble dye complexing polymers
US5929175A · kind A · utility
4Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/37
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(vinylpyridine betaines) containing a quaternary nitrogen and a carboxylate salt. The polymers herein have effective dye transfer inhibitor (DTI) properties for use, for example, laundry detergent and fabric softener compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.