Photoresponsive imaging members with polyurethane blocking layer

Details Photoresponsive imaging members with polyurethane blocking layer Photoresponsive imaging members with polyurethane blocking layer

1988-10-03

1990-05-01

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 58, G03G 514

Patent

active

049217690

ABSTRACT:
An imaging member comprised of an optional supporting substrate; a ground plane layer; a blocking layer; an optional adhesive layer; a photogenerator layer; and a charge transport layer, wherein the blocking layer is comprised of a polyurethane of the formula: ##STR1## wherein A is a trivalent group; A' is a bivalent group; R is selected from the group consisting of alkylene, substituted alkylene, arylene, and substituted arylene; x and y are number mole fractions the sum of which is equal to 1.0.

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