Phase change ink formulations, colorant formulations, and methods of forming colorants
US7939678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Apr 30, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A compound having the formulawherein R1, Z, and the carbonyl can be comprised by a common ring, wherein R1 comprises a chromophore that absorbs light from the visible wavelength range, and wherein n is an integer of at least 12. A solid phase change ink composition is also disclosed containing a colorant comprising a chromophore that absorbs light from the visible wavelength range and has the formulawherein R1, Z, and the carbonyl can be comprised by a common ring, and wherein n is an integer of at least 12. Also disclosed is a method of forming a colorant wherein a first compound having the formulais reacted with a second compound having the formula Z(CH2)nCH3 wherein n is an integer of at least 12 to form a third compound having the formulawherein 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.