Leuco colorants as bluing agents in laundry care compositions
US11136535B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Dec 7, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A laundry care composition comprising: (a) at least one laundry care ingredient, (b) a leuco composition; (c) a stabilizing amount of an antioxidant composition which comprises at least one phenol selected from the group consisting of alkylated phenol, hindered phenol, and mixtures thereof and at least one substituted diarylamine, wherein the mole ratio of the phenol to the substituted diarylamine is greater than 1:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.