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. 02, 1999
Filed:
May. 23, 1997
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A surface layer of a photosensitive layer contains a resin comprising a structural unit represented by the following general formula (1), and at least one compound of a triarylamine compound represented by the following general formula (2) and a styryl compound represented by the following general formula (3): ##STR1## wherein, X is --CR.sub.13 R.sub.14 --, substituted or unsubstituted cycloalkylidene, substituted or unsubstituted .alpha.,.omega.-alkylene, single bond, --O--, --S--, --SO-- or --SO.sub.2 --, wherein R.sub.13 and R.sub.14 are each hydrogen, trifluoromethyl, or substituted or unsubstituted alkyl or aryl, and R.sub.1 to R.sub.12 are each hydrogen, halogen, or substituted or unsubstituted alkyl or aryl; ##STR2## wherein Y is hydrogen, halogen, substituted or unsubstituted alkyl or alkoxy, or ##STR3## wherein R.sub.15 ' to R.sub.24 ' are each hydrogen, halogen, substituted or unsubstituted alkyl or alkoxy, R.sub.15 to R.sub.27 are each hydrogen, halogen, substituted or unsubstituted alkyl or alkoxy, and R.sub.28 and R.sub.29 are each hydrogen or substituted or unsubstituted alkyl, aralkyl or aryl; ##STR4## wherein Z is --CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--, R.sub.30 and R.sub.31 are each substituted or unsubstituted alkyl, aralkyl, aryl or heterocyclic, R.sub.32 to R.sub.39 are each hydrogen, substituted or unsubstituted alkyl or alkoxy, and Ar is substituted or unsubstituted arylene or heterocyclic.