Leuco colorants as bluing agents in laundry care compositions
US10876080B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Oct 11, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A laundry care composition including (a) at least one laundry care ingredient and (b) at least one fluorescent moiety covalently bound to at least one second moiety selected from the group consisting of leuco moieties and chromophore moieties. A method of treating a textile includes the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.