Ink compositions
US6028180A · kind A · utility
3Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0055
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink comprising water, a water-dissipatable polymer and one or more dyes having a benzene ring carrying a hydroxy group at each of the 1-, 3- and 5-positions and an azo group at each of the 2-, 4- and 6-positions or a tautomer thereof. Also claimed are certain dyes, compositions printer cartridges and ink jet printers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.