Photoresponsive imaging members with polyurethane blocking layers
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United States of America Patent
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-
May 1, 1990
Grant Date -
N/A
app pub date -
Oct 3, 1988
filing date -
Oct 3, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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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