Gas separation: apparatus – Magnetic separating means
Patent
1976-04-14
1977-07-05
Klein, David
Gas separation: apparatus
Magnetic separating means
156137, 427 74, 427336, G03G 504
Patent
active
040337685
ABSTRACT:
Disclosed is a method for the preparation of a seamless belt useful as the photosensitive element in an electrostatographic copying device. The method comprises:
A. applying a film or soluble material over a mandrel;
B. applying a photosensitive layer over the soluble film and heat treating the photosensitive layer;
C. applying a layer of conductive material over the photosensitive layer;
D. applying a seamless, heat shrinkable film of a thermoplastic resin over the layer of conductive material and heat shrinking the film to form a layered, endless belt;
E. removing the layered belt from the mandrel;
F. contacting the belt with a solvent for the soluble film to thereby dissolve the film; and
G. turning the belt inside out to provide a belt having layers from the inside out of the seamless polymeric film, the conductive material and the photosensitive layer.
REFERENCES:
patent: 2615807 (1952-10-01), Umberger
patent: 3077398 (1963-02-01), Jones
patent: 3697265 (1972-10-01), Teuscher et al.
patent: 3787207 (1974-01-01), Hasegawa et al.
patent: 3813271 (1974-05-01), Riggs
patent: 3819370 (1974-06-01), Komiya et al.
patent: 3928036 (1975-12-01), Jones
Hightower Judson R.
Jeffers Jerome L.
Klein David
O'Sullivan James P.
Ralabate James J.
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