Polymeric ammonium compounds as charge control agents

Details Polymeric ammonium compounds as charge control agents Polymeric ammonium compounds as charge control agents

G - Physics

03

G

G03G 9/10 (2006.01) C09D 5/03 (2006.01) C09D 5/46 (2006.01) C09D 179/00 (2006.01) G03G 9/087 (2006.01) G03G 9/113 (2006.01) G11B 5/62 (2006.01) G11B 7/24 (2006.01)

Patent

CA 2051794

ABSTRACT OF THE DISCLOSURE HOE 90/F 278K Polymeric ammonium compounds as charge control agents Use of polymeric ammonium salts which have a molecular weight of about 5000 to about 500,000, and are obtained by homopolymerization of monomers, such as, for example, diallyldialkylammonium chloride, or by copolymerization of mixtures of two monomers, such as, for example, diethyldimethylammonium chloride and diallylmethyloctyl- ammonium chloride, with molar monomer ratios of about 0.5:0.5 to about 0.95:0.05 in the copolymer, and if appropriate subsequent anion exchange, individually or in combination as charge control agents in electrophoto- graphic toners and developers which are employed for copying or duplicating masters and for printing electronically, magnetically or optically stored informa- tion or in colorproofing, and as charge control agents in powders and powder coatings.

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