Aqueous ink jet compositions comprising a hydrophobic polymer functionalized polyuronic acid dispersent, and method of using
US6242529A · kind A · utility
9Cited by
1References
22Claims
0Family size
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Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G81/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Pigment dispersed aqueous ink jet ink compositions suitable for printing on plain paper. The ink comprises water as the principal solvent, a pigment and a pigment dispersant. The pigment dispersant is a derivative of a polyuronic acid in which a hydrophobic polymer is covalently attached to the reducing terminus of the polyuronic acid. The polyuronic acid is composed primarily of 1,4-linked polygalacturonic acid, polyguluronic acid, polyiduronic acid, or mixed polymers thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.