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US 4,283,473 AGranted
Electrophotographic sheet material
AssigneeDomtar Inc.
InventorsColin H. Lewinton, Joseph Savit
Life of this patent
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Abstract
The present invention relates to an electrophotographic sheet material suitable for use as an offset printing master, comprising: a fibrous substrate, a continuous film of cellulose nitrate thereon and a layer of photo conductive material on said film.
Claims1
An electrophotographic sheet material comprising:
- a cellulosic base material, a continuous barrier film consisting of cellulose nitrate on said base material, and a photoconductive layer comprising zinc oxide on the surface of said film remote from said base material, wherein said cellulosic base material consists of a base paper, said continuous barrier film of cellulose nitrate constitutes between 1/2 and 6 lb. per ream (3,300 ft.sup.2) of said sheet material.
Dependencies are inferred from the claim text.