Water-based pigmented inks
US5840106A · kind A · utility
14Cited by
22References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1995 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Nov 13, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Water-based pigmented inks are disclosed. Such inks are formed from water-based dispersions of pigment particles having novel dispersants therein. The dispersions are formed from the reaction product of an alkenyl azlactone with an N-substituted amino acid compound. Subsequent to the reaction, the reaction product is ring-opened using an amine and, optionally, hydrolyzed. The resulting inks are well-suited for use in ink jet and other printing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.