Conductive barrier coat for electrostatic masters

Details Conductive barrier coat for electrostatic masters Conductive barrier coat for electrostatic masters

1982-12-21

1983-11-29

Ives, P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428512, 428514, 428522, 428407, 430 62, B32B 516, G03G 514

Patent

active

044181175

ABSTRACT:
An electrostatic master for lithographic printing characterized by a base, a barrier coat thereon, and a photoconductive layer. The barrier coat includes a hydrophobic thermoplastic film-forming resin having labile hydrogen-containing functional groups and a conductive agent. The conductive agent is a quaternary ammonium salt. The salts have only a minimal effect on water resistance and result in excellent reduction in the dielectric characteristics of the barrier coat.

REFERENCES:
patent: 3798032 (1974-03-01), Miller
patent: 4196253 (1980-04-01), Spence
patent: 4341839 (1982-07-01), Shaw et al.
patent: 4352861 (1982-10-01), von Meer et al.
patent: 4379822 (1983-04-01), Shaw

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