Pigment composition, ink for inkjet recording, coloring composition for color filter, and color filter
US8828132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Apr 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/201
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment composition containing an azo pigment represented by the following general formula (1) and a pigment derivative having a hydrophilic group: wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, or an arylsulfonyl group, R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R2 represents a substituent, A represents an aromatic 5- or 6-membered heterocyclic group, m represents an integer of from 0 to 5, and n represents an integer of from 1 to 4, with the general formula (1) not containing any ionic hydrophilic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.