Claims
- 1. A binder-type electrographic photosensitive plate which possesses stable electrical and physical properties and which is used to make multiple copies by a transfer process, comprising: an electroconductive substrate which is a metal plate or a plastic film having an electrically conductive layer containing carbon black power thereon, a photosensitive layer and an interface layer positioned between the electroconductive substrate and the photosensitive layer, said interface layer containing as an essential ingredient a mono- or co-polymer comprised of units of the formula: ##STR10## wherein R is hydrogen or methyl; A is ##STR11## wherein R.sub.1, R.sub.2, and R.sub.3 are each lower alkyl, phenyl, or benzyl, with R.sub.2 and R.sub.3 optionally being joined together to form a ring, or ##STR12## wherein B is a non-metallic atom selected from the group consisting of carbon, nitrogen, and sulfur, necessary to form a 5-6 membered heterocyclic nucleus with the --N.sup.+ .dbd.C-- group; X.sup.- is an anion, and Y is a substituted or unsubstituted alkylene group; and in which the molecular weight of said mono- or co-polymer ranges from 5000-200,000.
- 2. The electrophotography photosensitive plate of claim 1, in which the interface layer contains 5% to 60% by mole of the mono- or the co-polymer of the quaternary ammonium derivative.
- 3. The electrophotographic photosensitive plate of claim 1, wherein said mono- or co-polymer has a molecular weight in the range of 10,000-50,000.
- 4. The electrophotographic photosensitive plate of claim 1, wherein the interface layer of said photosensitive plate has a surface specific resistance less than 10.sup.12 ohms.
- 5. The electrophotographic photosensitive plate of claim 1, wherein the thickness of said interface layer ranges from 0.01-8 microns.
- 6. The electrophotographic photosensitive plate of claim 1, wherein said interface layer is a copolymer of said unit copolymerized with acrylamide, N-vinylpyrrolidone, N,N-dimethylacrylamide, diacetone acrylamide, methyl acrylate, methyl methacrylate, vinyl acetate, styrene or vinyl butyral.
Priority Claims (1)
Number |
Date |
Country |
Kind |
49-132432 |
Nov 1974 |
JPX |
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REFERENCE TO CO-PENDING APPLICATION
This is a continuation of application Ser. No. 818,311, filed July 25, 1977, now abandoned, which is a continuation-in-part of our pending United States patent application Ser. No. 631,521, filed Nov. 13, 1975, now abandoned, and entitled "An Electrophotography Photosensitive Plate".
US Referenced Citations (5)
Continuations (1)
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Date |
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818311 |
Jul 1977 |
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Continuation in Parts (1)
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Number |
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631521 |
Nov 1975 |
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