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:
Jun. 30, 1992
Filed:
Sep. 21, 1990
Applicant:
Inventors:
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 96 ; 430 66 ; 430906 ;
Abstract
An electrophotographic copying material is disclosed containing, in the photoconductive film, a high-molecular-weight polymer binder which is a graft polymer having a polyurethane as grafting base and grafted-on chains which contain vinyl alcohol units. The material is suitable, in particular, for the production of printing plates and printed circuits which are highly photosensitive and laminatable even at fairly large film thickness. The films can be treated with mild and toxicologically safe stripper solutions.