Pigment dispersion, recording ink, ink cartridge, ink-jet recording method and ink-jet recording apparatus
US8242201B2 · kind B2 · utility
45Cited by
3References
19Claims
0Family size
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Key dates
| Filing date | Dec 15, 2006 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Oct 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment dispersion is provided that includes a pigment, a pigment dispersant, a polymer dispersion stabilizer and water, wherein the polymer dispersion stabilizer is an alpha-olefin/maleic anhydride copolymer expressed by the formula (1) below. A recording ink is also provided that includes the pigment dispersion, a surfactant, a water-dispersible resin, a humectant and water.In the structural formula (1), R represents an alkyl group and n is an integer of 30 to 100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.