Ink compositions for ink jet printing
US4830671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Sep 18, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An ink composition is proved having the properties of stability and uniformity of performance under ink jet printing conditions and desired printing properties can be obtained with hot melt ink compositions consisting of a resinous binder comprised of a compound of the formula ##STR1## wherein R.sub.1 represents a polymerized fatty acid residue with two carboxylic acid groups removed R.sub.2 and R.sub.3 are the same or different and each represent an alkylene with up to 12 carbon atoms, a cycloalkylene with 6 to 12 carbon atoms, an arylene with 6 to 12 carbon atoms or an alkarylene with 7 to 12 carbon atoms and R.sub.4 and R.sub.5 are the same or different and each represents an alkyl having up to 36 carbon atoms, a cycloalkyl having up to 36 carbon atoms and aryl having up to 36 carbon atoms or an alkaryl having up to 36 carbon atoms said resinous binder having a melt viscosity of less than 250 CPS at 50 degrees C and a colorant distributed through the resinous binder in an effective amount sufficient to impart a predetermined color to the resulting hot melt ink composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.