申请人:The United States of America as represented by the Secretary of the
公开号:US04785115A1
公开(公告)日:1988-11-15
Provided are benzazole-substituted terephthalic acids of the formula ##STR1## wherein n is 1 or 2 and Q is ##STR2## wherein Z is --O-- or --S--. Also provided are methods for preparing the benzazole substituted terephthalic acid compounds.
Photoconductive imaging members with ladder polymers
申请人:Xerox Corporation
公开号:US05248580A1
公开(公告)日:1993-09-28
A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of a ladder polymer selected from the group consisting of those represented by the following formulas: ##STR1## and mixtures thereof, wherein n represents the number of segments, and a charge transport layer.