Dual layer photoconductors with charge transport layer including styrene-acrylic resin
AssigneeLexmark International, Inc.
InventorsDavid Glenn Black, Ronald Harold Levin, Dat Quoc Nguyen, Bradford Lee Taylor, Vincent Wen-Hwa Ting, Franklin Dilworth Zartman
Life of this patent
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Abstract
Charge transport layers comprise a charge transport compound and binder including styrene-acrylic resin. Dual layer photoconductors comprise a substrate, a charge transport layer as described, and a charge generation layer.
Claims14
A charge transport layer for a photoconductor, comprising charge transport compound and binder consisting essentially of polycarbonate resin and styrene-acrylic resin, said styrene-acrylic resin being in amount of about 1% to about 15% by weight of said charge transport layer, said styrene-acrylic resin being about 75% styrene and about 25% acrylate by weight and having a weight average molecular weight of at least about 1,000,000,
- wherein the charge transport compound is selected from the group consisting of diamine transport compounds, pyrazoline transport compounds, substituted fluorene transport compounds, hydrazone transport compounds, and mixtures thereof.
A photoconductor comprising a substrate, a charge generation layer, and a charge transport layer, wherein the charge transport layer comprises charge transport compound and binder consisting essentially of polycarbonate resin and styrene-acrylic resin, said styrene-acrylic resin being in amount of about 1% to about 15% by weight of said charge transport layer, said styrene-acrylic resin being about 75% styrene and about 25% acrylate by weight and having weight average molecular weight of at least about 1,000,000.
A charge transport layer for a photoconductor, comprising charge transport compound and binder consisting essentially of polycarbonate resin and styrene-butylacrylate resin, said styrene-butylacrylate resin being in amount of about 1% to about 15% by weight of said charge transport layer, said styrene-butylacrylate resin being about 75% styrene and about 25% butylacrylate by weight and having a weight average molecular weight of at least about 1,000,000.
Dependencies are inferred from the claim text.