Urethane-modified rosin esters
US4693846A · kind A · utility
17Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1986 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | May 9, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09F1/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention encompasses a urethane-modified rosin ester which is derived from an isocyanate and a hydroxyl-functional rosin esterification product of a dimerized rosin. The urethane-modified rosin esters, having a high softening point and good compatibility with hydrocarbon solvents, good gelability and good squalene resistance, are particularly suitable as binders for inks such as fast conversion lithographic inks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.