Modified rosin esters and their use in printing inks

Details Modified rosin esters and their use in printing inks Modified rosin esters and their use in printing inks

1991-11-04

1992-11-24

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 5445, C08G 6348

Patent

active

051662620

ABSTRACT:
A binder for use in gravure printing ink formulations comprising a modified rosin ester resinate prepared by forming a rosin-dienophile adduct, reacting the adduct with a polyfunctional hydroxy compound to form an ester and reacting with an acrylic-containing polymer to form a hard rosin ester. The polymer-modified rosin ester resinate is formed by reacting the prepared hard rosin ester with a rosin-dienophile adduct and an acrylic-containing polymer, reacting the product thereof with reactive zinc, followed by a reaction with lime, dehydrating the resinate product by refluxing, and adjusting its viscosity with a hydrocarbon solvent.

REFERENCES:
patent: 4002585 (1977-01-01), Oishi et al.
patent: 4322326 (1982-03-01), Pyle

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