Stable liquid formulations of anionic dyes
US7553359B2 · kind B2 · utility
1Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Apr 26, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/54
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns concentrated aqueous solutions of anionic disazo dyes, comprising salts and or the free acids of anionic dyes of the formulaand 2-(2-butoxyethoxy) ethanol wherein the substituents are each as defined in claim 1 and the use of these solutions for dyeing and/or printing hydroxyl-containing substrates and for producing inkjet inks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.