Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1991-05-23
1993-02-23
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 49, 430 83, G03G 508
Patent
active
051889170
ABSTRACT:
An electrophotographic light-sensitive material comprising a support having provided thereon a photoconductive layer containing at least an inorganic photoconductive substance and a binder resin, wherein the binder resin comprises (1) at least one AB block copolymer (Resin (A)) having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and composed of an A block comprising at least one polymerizable component containing at least one acidic group selected from --PO.sub.3 H.sub.2, --COOH, --SO.sub.3 H, a phenolic hydroxy group, ##STR1## (wherein R represents a hydrocarbon group or --OR' (wherein R' represents a hydrocarbon group)) and a cyclic acid anhydride-containing group, and a B block containing at least a polymerizable component represented by the following general formula (I): ##STR2## wherein R.sub.1 represents a hydrocarbon group; and (2) at least one resin (Resin (B)) having a weight average molecular weight of 5.times.10.sup.4 or more, containing a repeating unit represented by the general formula (III) described below as a copolymerizable component, and having a crosslinked structure made before the preparation of a dispersion for forming the photoconductive layer: ##STR3## wherein T.sub.2 represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, --O--, or --SO.sub.2 --; R.sub.3 represents a hydrocarbon group having from 1 to 22 carbon atoms; and d.sub.1 and d.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group, a hydrocarbon group having from 1 to 8 carbon atoms, --COOZ.sub.4, or --COOZ.sub.4 bonded through a hydrocarbon group having from 1 to 8 carbon atoms, wherein Z.sub.4 represents a hydrocarbon group having from 1 to 18 carbon atoms.
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Ashton Rosemary
Fuji Photo Film Co. , Ltd.
McCamish Marion E.
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