Ink compositions for ink jet printing
US5207825A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Jul 30, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an ink composition which comprises an aqueous liquid vehicle, a colorant, and a polymeric additive of the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, alkyl groups with from 1 to about 8 carbon atoms, and alkoxy groups with from 1 to about 8 carbon atoms, R.sup.3 and R.sup.4 are independently selected from the group consisting of alkyl groups with from 1 to about 4 carbon atoms, and x and y are each independently a number of from about 100 to about 400, present in an amount of at least about 1 part per million. The ink is suitable for use in ink jet printing processes, particularly thermal ink jet printing processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.