Electrographic liquid developers containing azo dye marking...

Details Electrographic liquid developers containing azo dye marking... Electrographic liquid developers containing azo dye marking...

G - Physics

03

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G03G 9/12 (2006.01) C09B 33/04 (2006.01) C09B 63/00 (2006.01) G03G 9/08 (2006.01) G03G 13/06 (2006.01)

Patent

CA 1096222

ELECTROGRAPHIC LIQUID DEVELOPERS CONTAINING AZO DYE MARKING PARTICLES Abstract of the Disclosure An electrographic liquid developer comprising a carrier liquid and a marking particle which comprises a dye compound having the formula: Image wherein: R1 is H, COOH, CONH2, -S02NH2 or -S03M where M is Na+ or NH4; R2 is a lower alkoxy radical, -OCH2CONH2, or Image where each of R6 and R7 is a lower alkyl radical; and R3 is H, a lower alkyl radical, a lower alkoxy radical or N02. -1-

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