Water soluble dye complexing polymers
US6093776A · kind A · utility
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1References
1Claims
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Assignee
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Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
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.