Aqueous pigment dispersion, ink composition, and image forming method
US8449097B2 · kind B2 · utility
6Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | Sep 24, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/301
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous pigment dispersion including: (A) a pigment; (B) a dispersion polymer having a neutralization degree of from 50% to 90% and a solubility of from 0.2 g to 0.8 g per 5 ml of water (25° C.), and containing an acidic group and a hydrophobic structural unit (a) having an aromatic ring linked via a linking group to an atom included in a main chain, a content ratio of the aromatic ring being from 10% by mass to less than 20% by mass based on a total mass of the polymer; and (C) a water-based liquid medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.