Leuco polymers as bluing agents in laundry care compositions
US10954474B2 · kind B2 · utility
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2References
6Claims
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Key dates
| Filing date | Nov 1, 2017 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Nov 1, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/0052
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A leuco polymer comprising a polymeric carbohydrate and a leuco moiety. The polymeric carbohydrate and the leuco moiety are covalently bound. Methods of making the leuco polymer, laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.