Bisazo compounds useful as charge generating pigments in electro

Details Bisazo compounds useful as charge generating pigments in electro Bisazo compounds useful as charge generating pigments in electro

1981-04-21

1986-10-21

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

430 58, 430 72, C09B 35037, C09B 3510, C09B 3520, C09B 35233

Patent

active

046186727

ABSTRACT:
Bisazo compounds represented by the general formula ##STR1## wherein R represents a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine, and when R is fluorine, it is at the ortho, para or meta position in each phenylcarbamoyl group; when R is chlorine, it is at the ortho position; when R is bromine, it is positioned at the ortho or meta position; and when R is iodine, it is at the meta position, which bisazo compounds are particularly suitable for use in the charge generating layer of a layered electrophotographic photoconductor.

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