Mixed polymer toner for forming electrographic printing plates

Details Mixed polymer toner for forming electrographic printing plates Mixed polymer toner for forming electrographic printing plates

1988-06-28

1989-09-26

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

430109, 264 12, 264 13, G03G 908, G03G 1322

Patent

active

048699926

ABSTRACT:
Disclosed is a method of making particulates. A solution is formed of a solvent. a first polymer having an intrinsic viscosity of at least 0.5, and a second polymer having an intrinsic viscosity of less than 0.5. The solution is atomized with a gas to form droplets of the solution suspended in the gas. The evaporation of the solvent leaves the particles suspended in the gas and the particles are collected to form the toner. Also disclosed is toner made by this method, and a method of making an electrographic printing plate by developing an electrostatic image with the toner, transferring the developed image to a substrate, and fixing the transferred image on the substrate. Also disclosed is an electrographic printing plate made according to that method.

REFERENCES:
patent: 3561003 (1971-02-01), Lanham et al.
patent: 3830750 (1974-08-01), Wellman
patent: 3965021 (1976-06-01), Clemens et al.
patent: 3974078 (1976-08-01), Crystal
patent: 4288516 (1981-09-01), Gaudioso
patent: 4489150 (1984-12-01), Chang et al.

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