G - Physics – 03 – G
Patent
G - Physics
03
G
G03G 9/08 (2006.01) G03G 9/087 (2006.01) G03G 9/09 (2006.01) G03G 9/097 (2006.01) G03G 21/00 (2006.01) G03G 21/18 (2006.01)
Patent
CA 2149272
A toner for developing electrostatic images having a uniform composition and uniform performances over varying sizes of toner particles is constituted by (a) a binder resin, (b) a long-chain alkyl compound and (c) an azo-type iron complex. The long-chain alkyl compound is represented by the following formula (1), (2) or (3): CH3~CH2~CH2OH (1), (see formula I) CH3~CH2~CH2COOH (3), wherein x and y independently denote an average value in the range of 35 - 150; z denotes an average value in the range of 1 - 5, and R denotes H or an alkyl group having 1 - 10 carbon atoms. The azo-type iron complex compound is represented by the following formula (4); (see formula II) wherein X1 and X2 independently denote hydrogen atom, lower alkyl group, lower alkoxy group, nitro group or halogen atom; m and m' denote an integer of 1 - 3; R1 and R3 independently denote hydrogen atom, C1-18 alkyl or alkenyl, sufonamide, mesyl, sulfonic acid group, carboxy ester group, hydroxy, C1-18 alkoxy, acetylamino, benzoylamino or halogen atom; n and n' denote an integer of 1 - 3; R2 and R4 denote hydrogen atom or nitro group; and A+ denotes a cation including 75 - 98 mol. % of ammonium ion and another ion selected from the group consisting of hydrogen ion, sodium ion, potassium iron and mixtures thereof.
Doujo Tadashi
Kohtaki Takaaki
Mikuriya Yushi
Ohno Manabu
Okubo Nobuyuki
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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