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:
Jul. 20, 1993
Filed:
Jul. 26, 1991
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; G03F / ;
U.S. Cl.
CPC ...
430190 ; 430192 ; 430193 ; 430285 ;
Abstract
A positively working photosensitive composition is disclosed useful for making positively working lithographic printing plates of exceptional wear, printing and solvent-resistant characteristics. The positively working photosensitive composition essentially contains a .beta.-dicarbonyl group and a quinone diazide group.