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US 4,639,492 AGranted
Phenolic-modified rosin esters
AssigneePPG Industries, Inc.
InventorsJoseph M. Makhlouf, Frederick A. Falk, Robert M. Piccirilli
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Abstract
The present invention encompasses a phenolic-modified rosin ester which is derived from a rosin esterification product of a dimerized rosin and a phenolic resin. The phenolic-modified rosin esters, having a high softening point and good compatibility with hydrocarbon solvents and good gelability, are particularly suitable as binders for inks such as lithographic inks.
Claims24
A phenolic-modified rosin ester comprising:
- (a) a rosin esterification product of:
- (i) an acid functional reactant comprising a rosin polyacid containing a dimerized rosin, and
- (ii) an alcohol;
- reacted with
- (b) a phenolic resin.
2 more elements
A phenolic-modified rosin ester comprising:
- (a) a rosin esterification product of:
- (i) an acid functional reactant comprising a rosin polyacid containing a dimerized rosin,
- (ii) an unsaturated carboxylic acid or an equivalent thereof, and
- (iii) an alcohol;
- reacted with
- (b) a phenolic resin.
3 more elements
Dependencies are inferred from the claim text.