Method of preparing a pigment press cake and uses thereof
US9458321B2 · kind B2 · utility
4Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2013 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Jun 27, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C3/041
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a pigment press cake is provided in which a pigment, a grinding agent, a polyetheramine, and a vehicle are subjected to grinding, followed by removal of the grinding agent and the vehicle to form a press cake. Also disclosed are a process to disperse the press cake with a polymeric dispersant in an aqueous vehicle to form a pigment dispersion and using the dispersion to form an aqueous ink jet ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.