The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 1993
Filed:
Aug. 31, 1990
Samuel D Hollis, Savannah, GA (US);
Thomas Y Shiah, Yorktown Heights, NY (US);
Union Camp Corporation, Wayne, NJ (US);
Abstract
A resinous binder is disclosed which is composed of a metal rosin resinate and a dilution increasing effective amount of a poly(ethylene-vinyl acetate) type polymer having greater than 50,000 weight average molecular weight. Also disclosed is a gravure printing ink which comprises a solvent, a colorant and a binder system wherein all or a portion of the binder system consists of the resinous binder of this invention. The use of the resinous binder of this invention in ink compositions results in significant dilution improvement without adversely affecting other desirable properties. Also disclosed is a method for the preparation of a resinous binder having a toluene dilution value of at least 85 mls measured from a concentration of 50% solids to a viscosity of 7.5 centipoise wherein a metal oxide or metal hydroxide of zinc, calcium, sodium, potassium or magnesium is reacted with a rosin or modified rosin and a poly(ethylene-vinyl acetate) type polymer having a weight average molecular weight of at least 50,000.