Compositions and inks containing disazo dyes
US7481522B2 · kind B2 · utility
0Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2003 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 1, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for printing an image on a substrate including applying thereto a composition including a liquid medium and a compound of Formula (1) A-N═N-L-N═N-A wherein: each A independently is optionally substituted aryl or heteroaryl; and L is an optionally substituted, optionally metallised 1,8-dihydroxynaphthylene group; provided that: (i) at most one of the groups represented by A has a hydroxy substituent ortho to the —N═N— groups shown in Formula (1); and (ii) Formula (1) is not: Also claimed are compositions for printing, compounds and processes for making the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.