Phase change ink formulations, colorant formulations, and methods of forming colorants
US6235094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Sep 15, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention encompasses a compound having the formula: ##STR1## wherein R.sub.1, Z and the carbonyl can be comprised by a common ring, wherein R.sub.1 comprises a chromophore that absorbs light from the visible wavelength range, and wherein n is an integer that is at least 12. The invention also encompasses a solid phase change ink composition. Such composition includes a phase change ink carrier and a colorant. The colorant comprises a chromophore that absorbs light from the visible wavelength range, and has the formula: ##STR2## wherein R.sub.1, Z and the carbonyl can be comprised by a common ring, wherein n is an integer that is at least 12. Additionally, the invention encompasses a method of forming a colorant. A first compound having the formula, ##STR3## is reacted with a second compound having the formula Z(CH.sub.2).sub.n CH.sub.3, wherein n is an integer that is at least 12, to form a third compound having the formula, ##STR4## wherein the third compound comprises a chromophore that absorbs light from the visible wavelength range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.