| 摘要 |
A photoreceptor with good mechanical and physical properties is provided with an overcoat layer comprising a copolymer of an alpha,beta-ethylenically unsaturated carboxylic acid and an alpha,beta-ethylenically unsaturated monomer wherein the weight percent of the alpha,beta-ethylenically unsaturated carboxylic-acid is at least 25% up to 99% of the copolymer. The copolymer may comprise an alpha,beta-ethylenically unsaturated carboxylic acid and an alpha,beta-ethylenically unsaturated monomer wherein the copolymer has an acid value of at least 150 mg KOH/g the copolymer. The copolymer may be present in a blend with a second polymer or copolymer comprised of units derived from a second alpha,beta-ethylenically unsaturated monomer that is different from the an alpha,beta-ethylenically unsaturated carboxylic acid and/or the alpha,beta-ethylenically unsaturated monomer. The copolymer or the copolymer blend may be present in a layer that is crosslinked or crosslinkable, the crosslinking being effected through a distinct crosslinking agent that reacts with group(s) on the an alpha,beta-ethylenically unsaturated carboxylic acid or the alpha,beta-ethylenically unsaturated monomer.
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