Aqueous ink of pigment type
US5702510A · kind A · utility
12Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1996 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Sep 18, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/326
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The aqueous ink of a pigment type comprises a pigment, water, a water-soluble solvent and a sulfite, and may further comprise a dispersant. An example of the dispersant comprises a copolymer of a monomer (a) represented by general formula (A), and one or more monomers (b) selected from the group consisting of compounds represented by general formulae (B) and (C): ##STR1## wherein AO represents an oxyalkylene group having 2 to 3 carbon atoms, and n represents an integer of 110 to 300.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.