Patent ID: 6093515
Filing Date: 2000-07-25
Classification: G03G

Abstract:
An electrophotographic photosensitive member, comprising: a support and a photosensitive layer disposed on the support, whereinsaid photosensitive member has a surface layer comprising a siloxane polymer which comprises at least two polysiloxane units each independently represented by a formula (1) shown below and has a molecular structure such that adjacent two polysiloxane units of the formula (1) are connected with each other at their side chains by --O--Pc--CO--O-- where Pc denotes a polycarbonate chain: ##STR17## wherein R.sub.1, R.sub.2, R.sub.5 and R.sub.6 independently denote hydrogen, halogen, substituted or unsubstituted alkyl group, or substituted or unsubstituted aryl group;R.sub.3 and R.sub.4 independently denote hydrogen, halogen, substituted or unsubstituted alkyl group, substituted or unsubstituted aryl group, or a divalent group represented by the following formula (2): ##STR18## wherein R.sub.7 to R.sub.11 independently denote a single bond, hydrogen, halogen, substituted or unsubstituted alkyl group, or substituted or unsubstituted aryl group; one of R.sub.7 to R.sub.11 being a single bond and at least one of R.sub.3 and R.sub.4 groups connected with (SiO).sub.n being said divalent group of the formula (2); andm and n independently denote a positive integer.