Water-soluble rosin polyamide resins
US5066331A · kind A · utility
17Cited by
4References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1989 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Dec 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09F1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water-soluble resin for packaging ink comprising the reaction product of fumarated or maleated rosin and a compound containing two secondary amine groups is disclosed. A resin with a higher softening point may be obtained by substituting a dicarboxylic acid, such as adipic acid or isophathalic acid, for part of the fumarated or maleated rosin. Water varnishes, pigment bases, and water based inks containing the resin are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.