System for separating electrophotographic carrier compositions and recycling the compositions

A method for use in two-components electrostatic image developers is disclosed, in which secure separation of a carrier coating resinous materials from a core magnetic material is achieved without affecting the properties of the core materials through process steps benign to the environment in super...

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Hauptverfasser:	ARAI KUNIO, SANTOH HIDEYUKI, AJIRI TADAFUMI, SUGIYAMA KUNITOSHI, ITOH YOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CINEMATOGRAPHY CLEANING CLEANING IN GENERAL ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PREVENTION OF FOULING IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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creator	ARAI KUNIO SANTOH HIDEYUKI AJIRI TADAFUMI SUGIYAMA KUNITOSHI ITOH YOSHIHIKO
description	A method for use in two-components electrostatic image developers is disclosed, in which secure separation of a carrier coating resinous materials from a core magnetic material is achieved without affecting the properties of the core materials through process steps benign to the environment in super- or sub-critical water compositions under the conditions of a temperature of 300° C. or more and a pressure of 20 MPa. The core magnetic material is subsequently recycled for forming carrier. This method may also be useful for processing waste including magnetic materials with silicone resin coating.
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subjects	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CINEMATOGRAPHY CLEANING CLEANING IN GENERAL ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PREVENTION OF FOULING IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
title	System for separating electrophotographic carrier compositions and recycling the compositions
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