Water-soluable rosin-based coatings and inks

Details Water-soluable rosin-based coatings and inks Water-soluable rosin-based coatings and inks

1991-08-09

1992-04-14

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Marking

106241, 527602, 525544, C09D 1108

Patent

active

051044498

ABSTRACT:
Stable pigmented coating composition, suitable as a package coating varnish or ink, including newsprint ink or rotogravure ink, comprises a suspension of at least 10 weight % pigment in an aqueous solution of at least 5 weight % water soluble modified rosin, the water-soluble modified rosin having an acid number of at least 150 and comprising the reaction product of rosin, formaldehyde and at least one of an ortho- or para-carboxyl-substituted phenol. The weight ratio of pigment to resin is from 5:1 to 1:5.

REFERENCES:
patent: 4391640 (1983-07-01), Okoshi et al.
patent: 4792356 (1988-12-01), Rudolphy et al.
patent: 4857624 (1989-08-01), DeBlasi et al.

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