Polyimide toner compositions, process for the preparation of the polyimides and Deinking process

A toner compsn. comprises pigment and a polyimide of formula (I) or (II): R = alkylene, oxyalkylene or polyoxyalkylene; and n = number of monomer segments. Also claimed are: (i) a process for the prepn. of polyimides of formula (I) and (II) comprising heating and admixing a dianhydride monomer and a...

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Bibliographische Detailangaben
Hauptverfasser:	SACRIPANTE, GUERINO G, KITTELBERGER, STEPHEN J, YEUNG, ANISSA B. W, MCANENEY, BRIAN T
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MAGNETOGRAPHY METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHOTOGRAPHY PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A toner compsn. comprises pigment and a polyimide of formula (I) or (II): R = alkylene, oxyalkylene or polyoxyalkylene; and n = number of monomer segments. Also claimed are: (i) a process for the prepn. of polyimides of formula (I) and (II) comprising heating and admixing a dianhydride monomer and a diamine monomer to a temp. of 150-190 [deg] C, followed by continued heating at 190-250 [deg] C, thereafter isolating the prod.; (ii) a developer compsn. contg. the above toner compsn. and carrier particles; and (iii) a method of imaging comprising forming an electrostatic latent image, developing it with the developer of (ii) and transferring the image to a suitable substrate.