Electrophotographic elements having charge transport layers containing high mobility polyester binders

摘要: An electrophotographic element comprising a high mobility charge transport layer. The layer binder is polyester according to formula I: ##STR1## wherein Ar represents phenylene, terephthoyl, isophthoyl, 5-t-butyl-1,3-phenylene and phenylene indane; D alkyl, linear or branched, cycloalkyl, having from 4 about 12 carbons; R 1 , 2 7 8 represent H, alkyl carbon atoms, cyclohexyl, norbornyl, phenylindanyl, perfluoralkyl α, α-dihydrofluoroalkyl α,α,ω-hydrofluoroalkyl atoms; 3 5 6 9 10 11 represent, halo x 0 0.8; y 1.