Claims
- 1. An imaging member comprising:
a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer; and (2) a second charge transport layer comprised of N,N′-diphenyl-N,N′-bis(alkylphenyl)-1, 1-biphenyl-4,4′-diamine, a resin binder and a hindered phenol comprising tetrakis [methylene(3,5-di-tert-butyl-4-hydroxy hydrocinnamate)] methane or 2, 6-di-tert-butyl-4-methylphenol dissolved in a solvent comprised of tetrahydrofuran and toluene.
- 2. An imaging member according to claim 1 wherein said first charge transport layer binder comprises a polycarbonate.
- 3. An imaging member according to claim 1 wherein said first charge transport layer binder comprises poly(4,4′-isopropylidene phenyl)carbonate dissolved in methylene chloride.
- 4. An imaging member according to claim 1 wherein said second charge transport layer binder is selected from the group consisting of poly(4,4′-diphenyl-1,1′-cyclohexane) carbonate, polystyrene, or a polyphthalate carbonate represented by:
- 5. An imaging member according to claim 1 wherein said second charge transport layer binder comprises polystyrene.
- 6. An imaging member according to claim 1 wherein said second charge transport layer binder comprises poly(4,4′-diphenyl-1,1′-cyclohexane) carbonate.
- 7. An imaging member according to claim 1 wherein said second charge transport layer binder comprises a polyphthalate represented by:
- 8. An imaging member according to claim 1 wherein said second charge transport layer binder is present in an amount of from about 40 to about 60 weight percent based on the total weight of the second charge transport layer.
- 9. An imaging member according to claim 1 wherein said first charge transport layer has a thickness of from about 10 micrometers to about 20 micrometers.
- 10. An imaging member according to claim 1 wherein said second charge transport layer has a thickness of from about 10 micrometers to about 20 micrometers.
- 11. An imaging member according to claim 1, wherein said first charge transport layer contains an arylamine represented by:
- 12. An imaging member according to claim 1, wherein said first charge transport layer contains an arylamine selected from the group consisting of, N,N′-diphenyl-N,N′-bis(alkylphenyl)-1,1-biphenyl-4,4′-diamine, N,N′-diphenyl-N,N′-bis(halophenyl)-1,1′-biphenyl-4,4′-diamine, tritolylamine, N,N′-bis(3,4 dimethylphenyl)-N,N-′(1-biphenyl) amine, 2-bis((4′-methylphenyl) amino-p-phenyl) 1,1-diphenyl ethylene, and 1-bisphenyl-diphenylamino-1-propene.
- 13. An imaging member according to claim 1 wherein said hindered phenol is present in the second charge transport layer in an amount of from about 3 to about 20 percent by weight based on the total weight of the second charge transport layer.
- 14. An imaging member according to claim 1 wherein said hindered phenol is present in the second charge transport layer in an amount of from about 5 to about 10 percent by weight based on the total weight of the second charge transport layer.
- 15. An imaging member according to claim 1 wherein said first charge transport layer is dissolved in methylene chloride.
- 16. An imaging member according to claim 1 wherein each of said first and second charge transport layer comprises said binder in an amount of from about 20 to about 80 percent by weight.
- 17. An imaging member according to claim 1 wherein each of said first and second charge transport layers comprise a charge transport component in an amount of from about 20 to about 80 percent by weight.
- 18. An imaging member according to claim 1 further comprising an adhesive layer and an overcoat layer.
- 19. An image forming device comprising at least a photoreceptor, a developer for developing an image, and transferring said image to a receiving member, a charging device which charges the photoreceptor, wherein the photoreceptor comprises:
a photogenerating layer; (1) a first charge transport layer comprised of a charge transport component and a resin binder; and thereover and in contact with the first layer, (2) a second top charge transport layer comprised of a charge transport component, a resin binder and a hindered phenol dopant.
- 20. The image forming device according to claim 16 wherein the photoreceptor is in the form of a belt.
- 21. The image forming device according to claim 16 wherein the photoreceptor is in the form of a drum.
- 22. The image forming device according to claim 16 and further comprising a blocking layer, an adhesive layer, and an overcoat layer.
- 23. An imaging member according to claim 1 wherein said member further comprises a substrate having a thickness of from about 50 micrometers to about 1,000 micrometers.
- 24. An imaging member according to claim 1 wherein said member further comprises a substrate having a thickness of from about 50 to about 100 micrometers.
- 25. An imaging member according to claim 1 wherein said member further includes a charge blocking layer comprising epoxy resins, polyesters, polysiloxanes, polyamides, polyurethanes, polyphosphazines, polyvinyl butyral, and phenolic resins.
- 26. An imaging member according to claim 1 wherein said member further includes a blocking layer having a thickness of from about 0.05 micrometers to about 4 micrometers.
- 27. An imaging member according to claim 1 wherein said first and second charge transport layers are applied in at least two separate passes.
- 28. An imaging member according to claim 1 wherein said photogenerating layer comprises Type V hydroxygallium phthalocyanine, chlorogallium phthalocyanine, x-polymorph metal-free phthalocyanine, vinyl chloride, ortrifluoroacetic acid dispersed in an arylamine hole transport matrix.
- 29. An imaging member according to claim 1 wherein said photogenerating layer comprises hydroxygallium phthalocyanine.
- 30. An imaging member according to claim 1 wherein said photogenerating layer has a thickness of from about 0.05 micrometers to about 40 micrometers.
- 31. An imaging member according to claim 1 wherein each of said charge transport layers has a thickness of from about 10 to about 20 micrometers.
- 32. An imaging member according to claim 1 wherein said photogenerating layer further comprises a binder selected from the group consisting of polycarbonates, polyesters, including polyethylene terephthalate, polyurethanes, polystyrenes, polybutadienes, polysulfones, polyarylethers, polyarylsulfones, polyethersulfones, polycarbonates, polyethylenes, polypropylenes, polymethylpentenes, polyphenylene sulfides, polyvinyl acetates, polyvinylbutyrals, polysiloxanes, polyacrylates, polyvinyl acetals, polyamides, polyimides, amino resins, phenylene oxide resins, terephthalic acid resins, phenoxy resins, epoxy resins, phenolic resins, polystyrene and acrylonitrile copolymers, polyvinylchlorides, polyvinyl alcohols, poly-N-vinylpyrrolidinone)s, vinylchloride and vinyl acetate copolymers, acrylate copolymers, alkyd resins, cellulosic film formers, poly(amideimide), styrene-butadiene copolymers, vinylidenechloride-vinylchloride copolymers, vinylacetate-vinylidenechloride copolymers, styrene-alkyd resins, and polyvinylcarbazoles.
- 33. An imaging member according to claim 32 wherein said photogenerating layer binder comprises poly(4,4′-diphenyl-1,1′cyclohexane carbonate).
- 34. An imaging member according to claim 1 wherein said first charge transport layer comprises a polycarbonate binder.
- 35. An imaging member comprising:
a photogenerating layer; (1) a first charge transport layer comprised of N,N′-diphenyl-N,N′-bis(alkylphenyl)-1,1-biphenyl-4,4′-diamine and poly(4,4′-isopropylidene)carbonate dissolved in methylene chloride; and thereover and in contact with the first layer (2) a second top charge transport layer comprised N,N′-diphenyl-N,N′-bis(alkylphenyl)-1,1-biphenyl-4,4′-diamine, poly(4,4′-diphenyl)1,1′ cyclohexane carbonate, and tetrakis [methylene(3,5-di-tert-butyl-4-hydroxy hydrocinnamate)] methane dissolved in tetrahydrofuran.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] Attention is directed to commonly-assigned copending U.S. Patent Application Serial No. ______, D/A1426, filed herewith, by Tong, et al, and which application discloses an imaging member comprised of a photogenerating layer, (1) a first charge transport layer comprised of a charge transport component and a resin binder, and thereover and in contact with the first layer, (2) a second top charge transport layer comprised of a charge transport component and a polymer of a styrene containing a hindered phenol.
[0002] The disclosure of the above mentioned copending application is incorporated herein by reference.
[0003] The appropriate components, layers, processes, and the like of the above copending application may be selected for the present invention in embodiments thereof.