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. 25, 1995
Filed:
May. 05, 1994
Applicant:
Inventors:
Franciscus Heugebaert, Mortsel, BE;
Gilbert Voortmans, Beerse, BE;
Jean-Marie Dewanckele, Drongen, BE;
Johan Loccufier, Zijaarde, BE;
Assignee:
Agfa-Gevaert, N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03F / ;
U.S. Cl.
CPC ...
430461 ; 430204 ; 430309 ; 430331 ; 430432 ; 430248 ; 430463 ; 430493 ; 101465 ; 101466 ;
Abstract
The present invention provides a conversion liquid for converting silver areas of a silver based printing plate into ink repellant areas while rendering background areas of said silver based printing plate ink accepting, said conversion liquid comprising a hydrophobizing compound capable of adsorbing to said hydrophilic background areas and a hydrophilizing compound capable of adsorbing to said silver areas and/or a bleaching compound capable of oxidizing the silver in said silver based printing plate.