Water-based pigment dispersions, inkjet recording inks, and color filters
US7553365B2 · kind B2 · utility
3Cited by
10References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 25, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jul 16, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous pigment dispersion is produced by ultrafinely dispersing a pigment dispersion mixture, which has been obtained by mixing at least a pigment and a dispersant in an aqueous medium, with microbeads having diameters of not smaller than 0.02 mm but smaller than 0.2 mm. A color composition for a color filter is produced by dispersing a mixture of a pigment, a dispersant, a resin varnish and a solvent with the microbeads in a mill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.