Non-aqueous pigment dispersions using dispersion synergists
US7648571B2 · kind B2 · utility
5Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Nov 28, 2006 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Nov 28, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A non-aqueous pigment dispersion includes a diketopyrrolo-pyrrole pigment, a polymeric dispersant, and a dispersion synergist in a dispersion medium wherein the dispersion synergist is a quinacridone derivative containing at least one acid group or a salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.