Azo pigment, process for producing azo pigment, dispersion containing azo pigment, and coloring composition
US8236065B2 · kind B2 · utility
7Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Dec 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is provided an azo pigment having excellently good color reproducibility, dispersibility, and storage stability of pigment dispersions and having excellent hue and tinctorial strength. An azo pigment represented by the following formula (1) and having characteristic peaks at Bragg angles (20±0.2°) of 7.2°, 13.4°, 15.0° and 25.9° in X-ray diffraction with characteristic Cu Kα line, and a tautomer thereof:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.