Liquid fluorescent whitening agent formulation
US6660705B1 · kind B1 · utility
0Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/2048
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid fluorescent whitening agent formulation comprising: a) 10 to 20% of a compound of formula (1) in which R1represents hydrogen, 1-5 C-alkyl, 1-5 C-alkoxy or halogen, M represents hydrogen, an alkaline- or alkaline earth-metal, or ammonium; b) 20 to 50% of a non-ionic surfactant; c) 20 to 40% of a polyhydroxy compound; d) 0 to 20% of a glycol compound and e) 1 to 50% water and use thereof for improving the whiteness aspect of detergents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.