Azo pigment composition, production process of azo pigment composition, dispersion containing azo pigment composition, coloring composition and ink for inkjet recording
US8080067B2 · kind B2 · utility
8Cited by
5References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 5, 2009 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Mar 5, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
To provide an azo pigment composition exhibiting very good hue and light fastness and having excellent tinctorial strength (color density) and preferably further provide an azo pigment composition containing an azo pigment having characteristic X-ray diffraction peaks at different positions or a tautomer thereof. An azo pigment composition comprising at least one kind of an azo pigment represented by formula (1) having characteristic X-ray diffraction peaks at Bragg angles(20±0.2°) of 7.6°, 25.6° and 27.7° in the CuKα characteristic X-ray diffraction or a tautomer thereof:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.