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:
Nov. 24, 1992
Filed:
Nov. 12, 1991
Applicant:
Inventor:
Paul J Zuraw, Mt. Pleasant, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
524270 ; 524502 ; 524576 ; 525 5444 ;
Abstract
The invention is ink pigment grinding resins for water-based printing inks which are produced by the esterification of fortified rosin with styrene-allyl alcohol copolymer and various polyols. The resulting rosin resin may be employed over a wide range of pH values to produce stable low viscosity grind bases.