Phosphate ester containing photoconductors
AssigneeXerox Corporation
InventorsDaniel V. Levy, Jin Wu, Liang-Bih Lin, Francisco J. Lopez
Life of this patent
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Abstract
A photoconductor containing a substrate, an undercoat layer thereover wherein the undercoat layer includes, for example, a polyol resin, an aminoplast resin, a polymeric phosphate ester adhesion component, and a metal oxide; and at least one imaging layer, such as a photogenerating and charge transport layer, formed on the undercoat layer.
Claims40
An imaging member consisting essentially of a substrate, a layer thereover comprised of a polyol resin, an aminoplast resin, a polymeric phosphate ester adhesion component, and a metal oxide;
- and at least one imaging layer formed on the polyol resin containing layer.
A photoconductor comprising a substrate, a layer thereover comprising a polyol resin, an aminoplast resin, at least one polymeric phosphate ester, and a metal oxide;
- and thereover a photogenerating layer and at least one charge transport layer.
A photoconductor comprising a substrate, a layer thereover comprising a polyol resin, an aminoplast resin, at least one polymeric phosphate ester, and a metal oxide;
- and thereover a photogenerating layer and at least one charge transport layer, and wherein said polymeric phosphate ester possesses a weight average molecular weight Mw of from about 200 to about 5,000, and optionally a polydispersity of about 1 to 2.
A photoconductor comprising in sequence a hole blocking layer consisting essentially of a polyol resin, an aminoplast resin, a polymeric phosphate ester, and a metal oxide;
- a photogenerating layer and a charge transport layer;
- and wherein said polymeric phosphate ester is a carboxyl phosphate ester, a hydroxyl phosphate ester, or a methacrylol functionalized phosphate ester, which polymeric phosphate ester is present in an amount of from about 1 to about 10 weight percent, and wherein said charge transport layer contains N,N′-diphenyl-N,N-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine, N,N′-bis(4-butylphenyl)-N,N′-di-p-tolyl-[p-terphenyl]-4,4″-diamine, N,N′-bis(4-butylphenyl)-N,N′-di-m-tolyl-[p-terphenyl]-4,4″-diamine, N,N′-bis(4-butylphenyl)-N,N′-di-o-tolyl-[p-terphenyl]-4,4″-diamine, N,N′-bis(4-butylphenyl)-N,N′-bis-(4-isopropylphenyl)-[p-terphenyl]-4,4″-diamine, N,N′-bis(4-butylphenyl)-N,N′-bis-(2-ethyl-6-methylphenyl)-[p-terphenyl]-4,4″-diamine, N,N′-bis(4-butylphenyl)-N,N′-bis-(2,5-dimethylphenyl)-[p-terphenyl]-4,4″-diamine, and N,N′-diphenyl-N,N′-bis(3-chlorophenyl)-[p-terphenyl]-4,4″-diamine.
A photoconductor consisting essentially of a substrate, a hole blocking layer thereover of a polyol resin, an aminoplast resin, a polymeric phosphate ester adhesion component, and a metal oxide;
- and thereover a photogenerating layer and a charge transport layer, and wherein said polymeric phosphate ester is a carboxy phosphate ester as represented by the formula/structure
- wherein R is an aliphatic group in which one or more aliphatic carbon atoms are substituted with lateral or terminal —COOR′ groups, wherein R′ is H, a metal, ammonium, alkyl, or aryl;
- M is hydrogen, a metal or ammonium, and x is a suitable number;
- and wherein the charge transport layer comprises at least one of
- wherein X is selected from the group consisting of at least one of alkyl, alkoxy, aryl, and halogen;
- and
- wherein X and Y are independently selected from the group consisting of at least one alkyl, alkoxy, aryl, and halogen.
Dependencies are inferred from the claim text.