Electrophotographic photoreceptor

Details Electrophotographic photoreceptor Electrophotographic photoreceptor

1989-09-01

1991-06-04

Mc Camish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430127, 526326, G03G 500, C08F 1816

Patent

active

050213113

ABSTRACT:
An electrophotographic photoreceptor comprising a support having provided thereon at least one photoconductive layer containing at least an inorganic photoconductive substance and a binder resin, wherein said binder resin comprises at least one copolymer resin comprising a monofunctional macromonomer (M) and a monomer (A), said monofunctional macromonomer (M) having a weight average molecular weight of not more than 2.times.10.sup.4 and containing at least one polymerization component represented by formula (II-a) or (II-b): ##STR1## wherein X.sub.0 represents --COO--, --OCO--, --CH.sub.2 OCO--, --CH.sub.2 COO--, --O--, --SO.sub.2 --, --CO--, ##STR2## wherein R.sub.1 represents a hydrogen atom or a hydrocarbon group; Q.sub.0 represents an aliphatic group having from 1 to 18 carbon atoms or an aromatic group having from 6 to 12 carbon atoms, said carbon numbers not inclusive of substituents; b.sub.1 and b.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group, a hydrocarbon group, --COO--Z or --COO--Z bonded via a hydrocarbon group, wherein Z represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group; and Q represents --CN, --CONH.sub.2 or ##STR3## wherein Y represents a hydrogen atom, a halogen atom, an alkoxyl group or --COOZ', wherein Z' represents an alkyl group, an aralkyl group or an aryl group, with a polymerizable double bond-containing group represented by formula (I) being bonded to only one of the terminals of the main chain of said macromonomer: ##STR4## wherein V has the same meaning as X.sub.0 ; and a.sub.1 and a.sub.2, which may be the same or different, each has the same meaning as b.sub.1 and b.sub.2, said monomer being (A) represented by formula (III): ##STR5## wherein X.sub.1 has the same meaning as X.sub.0 ; Q.sub.1 has the same meaning as Q.sub.0 ; and c.sub.1 and c.sub.2, which may be the same or different, has the same meaning as b.sub.1 and b.sub.2, and at least one polar group selected from --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, --OH, --SH, and ##STR6## wherein R represents a hydrocarbon group, being bonded to only one of terminals of the main chain of said copolymer.

REFERENCES:
patent: 3885961 (1975-05-01), Kimura et al.
patent: 4239677 (1980-12-01), Dieck
patent: 4749981 (1988-07-01), Yui et al.
patent: 4818654 (1989-04-01), Hiro et al.
patent: 4871634 (1989-10-01), Limburg et al.
patent: 4871638 (1989-10-01), Kato et al.

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