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:
Mar. 10, 1998
Filed:
Oct. 18, 1996
Willi-Kurt Gries, Wiesbaden, DE;
AGFA-Gevaert AG, Leverkusen, DE;
Abstract
A photosensitive material for the production of offset printing plates which contains a) a coating base which is composed of aluminum or an aluminum alloy and is suitable for offset printing, b) a hydrophilic coating containing an organic polymer and a free-radical-polymerizable compound and having a coating weight in the range from 0.001 to 1 g/m.sup.2, c) a photopolymerizable coating containing (1) a polymeric binder, (2) a free-radical-polymerizable compound and (3) a compound or a combination of compounds which is capable of initiating the polymerization of the compound (2) on exposure to actinic radiation, and d) a transparent covering sheet, the adhesion of the photopolymerizable coating (c) to the hydrophilic coating (b) and/or the covering sheet (d) being altered by exposure. The material is processed to form the printing plate by imagewise exposure and peeling the covering sheet (d) together with the unexposed areas of the coating (c) off the coating base (a) ('peel apart'). Printing plates having good resolution and high run performance are obtained.