INORGANIC CRYSTALLINE BINDERS FOR ELECTROPHOTOGRAPHIC PLATES

• US 3,607,261 A
• Filed: 04/04/1969
• Issued: 09/21/1971
• Est. Priority Date: 05/02/1966
• Status: Expired due to Term

• Current Assignee: Alan B. Amidon, Joseph Mammino, Richard Radler
• Original Assignee: Alan B. Amidon, Joseph Mammino, Richard Radler
• Inventors: Radler, Richard, Amidon, Alan B., Mammino, Joseph
• Primary Examiner(s): Lesmes, George F.
• Assistant Examiner(s): Copper, III, John C.
• Application Number:
  US04/829,835
• Time in Patent Office: 900 Days
• Field of Search: 96/1.5,1.8 252/501
• US Class Current: 430/76
• CPC Class Codes: G03G 5/0507 Inorganic compounds
• CPC Class Codes: G03G 5/0517 comprising one or more cyclic groups consisting of carbon-atoms only
• CPC Class Codes: G03G 5/0521 comprising one or more heterocyclic groups
• CPC Class Codes: G03G 5/085 and being incorporated in an inorganic bonding material, e.g. glass-like layers

Abstract

An electrophotographic material is disclosed comprising a support substrate and an inorganic crystalline photoconductive insulating layer. The photoconductive coating comprises a photoconductive material and an inorganic crystalline binder.

Claims

2. The electrophotographic plate as described in claim 1 wherein the said inorganic crystalline binder material consists essentially of trimeric phosphonitrilic chloride.

3. The electrophotographic plate as described in claim 1 wherein said photoconductive material consists essentially of a phthalocyanine pigment.

4. The electrophotographic plate of claim 1 wherein said photoconductive material consists essentially of zinc oxide.

5. The electrographic plates as described in claim 1 wherein said photoconductive material consists essentially of cadmium sulfoselenide.

6. An electrophotographic imagining process comprising forming an electrostatic latent image on the surface of a photoconductive plate, said plate comprising a support substrate having fixed to the surface thereof a photoconductive material dispersed in an inorganic crystalline binder consisting essentially of a phosphonitrilic compound, developing said image with electroscopic marking particles and fixing said image to the surface of said photoconductive plate.

7. The process as disclosed in claim 6 wherein said inorganic crystalline binder material consists essentially of trimeric phosphonitrilic chloride.