Aqueous ink compositions
US6200371A · kind A · utility
5Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Mar 30, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B53/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink comprising water, a water-dissipatable polymer and a dye of the Formula (1): ##STR1## wherein: PA1 R.sup.1 is optionally substituted alkyl or optionally substituted aryl; PA1 R.sup.2 is H, optionally substituted alkyl or optionally substituted aryl; PA1 R.sup.5 is H or optionally substituted alkyl; and PA1 R.sup.3 and R.sup.4 are each independently optionally substituted alkyl or optionally substituted aryl, or R.sup.3 and R.sup.4 together with the CH group to which they are attached from an optionally substituted 5- or 6- membered ring. Also claimed are dyes and ink jet printing processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.