Fluorescent brightener premix
US9951298B2 · kind B2 · utility
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23References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jan 15, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/29
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluorescent brightener premix comprising from 1% to 15% of a fluorescent brightener and 10% to 80% of an alkoxylated nonionic surfactant, by weight of the premix. The premix, upon being added into a liquid composition, has minimized impact on the pH of the liquid composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.