Patent ID: 6103436
Filing Date: 2000-08-15
Classification: C08G,G03G

Abstract:
An electrophotographic imaging member comprising a supporting substrate coated with at least one photoconductive layer and an overcoating layer, the overcoating layer comprisinga hydroxy functionalized aromatic diamine witha hydroxy functionalized triarylamine dissolved or molecularly dispersed in a crosslinked polyamide matrix, the hydroxy functionalized triarylamine being a compound different from the polyhydroxy functionalized aromatic diamine, the crosslinked polyamide prior to crosslinking being selected from the group consisting of materials represented by the following Formulae I and II: ##STR22## wherein: n is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R is an alkylene unit containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.2 sites are --H, andthe remainder of the R.sub.2 sites are --CH.sub.2 --O--CH.sub.3, and ##STR23## wherein: m is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100000,R.sub.1 and R are independently selected from the group consisting of alkylene units containing from 1 to 10 carbon atoms, andbetween 1 and 99 percent of the R.sub.3 and R.sub.4 sites are --H, andthe remainder of the R.sub.3 and R.sub.4 sites are --CH.sub.2 --O--CH.sub.3 ;wherein the hydroxy functionalized triarylamine is represented by the following formula: ##STR24## wherein Ar is selected from the group consisting of: ##STR25## R is selected from the group consisting of --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 and --C.sub.4 H.sub.9,Ar' and Ar"" are independently selected from the group consisting of: ##STR26## R is selected from the group consisting of --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 and --C.sub.4 H.sub.9,the hydroxy functionalized triarylamine compound being free of any direct conjugation between --OH groups and the nearest nitrogen atom through one or more aromatic rings.