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. 07, 1983
Filed:
Aug. 17, 1981
Werner Franke, Wiesbaden, DE;
Markus Seibel, Mainz, DE;
Richard Brahm, Ingelheim, DE;
Hans Trittler, Wiesbaden, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
An electrophotographic recording material comprising an electrically conductive support, a photoconductor layer and an about 1 to about 50 .mu.m thick protective layer comprising a radiation-hardened, crosslinked polyester which is formed from trimethylol propane, adipic acid and acrylic acid and which has a surface resistance ranging from about 5.5.multidot.10.sup.12 to about 2.5.multidot.10.sup.13 ohm and a volume resistivity ranging from about 7.multidot.10.sup.10 to about 5.multidot.10.sup.13 ohm cm, measured at 23.degree. C. and 50 percent relative humidity, and a process for producing such a recording material.