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:
Aug. 18, 1992
Filed:
Oct. 09, 1990
Applicant:
Inventor:
Carolyn C Legere-Krongauz, Claymont, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 49 ; 430281 ; 430283 ;
Abstract
A photohardenable electrostatic master comprising an electrically conductive substrate; a photohardenable layer, and a conductant sealant layer, the conductant being a thiourea or a thioamide present in an amount sufficient to control the discharge characteristics of the sealant layer. The master is particularly useful in the graphic arts field, especially in the area of color proofing wherein proof are prepared to simulate the images produced by printing.