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:
May. 08, 1979
Filed:
Nov. 03, 1972
Applicant:
Inventors:
Gunter Berghauser, Wiesbaden-Schierstein, DE;
Fritz Uhlig, Wiesbaden-Biebrich, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03F / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
96 75 ; 96 33 ; 96 8 / ; 427160 ; 427327 ; 427405 ; 428469 ; 101456 ; 101459 ; 4272 / ;
Abstract
This invention relates to an aluminum base material for presensitized printing plates. The aluminum has an anodically produced oxide layer on the surface thereof, which layer is at least 0.0002 mm. thick, and the oxide layer is reacted with polyvinyl phosphonic acid.