Rosin and fatty acid based pigment grinding aids for water-based ink formulations
US5182326A · kind A · utility
18Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1991 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Apr 8, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D177/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is pigment grinding aids for water-based inks which are produced by reacting an unsaturated fatty acid and/or resin acid with either acrylic acid, metacrylic acid, fumaric acid, or maleic anhydride to form a polycarboxylic acid anhydride. The polycarboxylic acid anhydride is reacted with an excess of polyamine to produce an amidoamide or imidoamide intermediate. This intermediate is reacted with either acrylic acid or methacrylic acid to produce the grinding aid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.