Color toner
AssigneeCanon Kabushiki Kaisha
InventorsHiroyuki Kobayashi, Takaaki Kohtaki
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AssigneeCanon Kabushiki Kaisha
InventorsHiroyuki Kobayashi, Takaaki Kohtaki
Estimating the term…
A color toner is constituted to form a polyester binder resin and a colorant. The polyester resin is obtained from a monomer mixture including, at least: 25-35 mol. % of a dibasic aromatic acid component (a) selected from isophthalic acid, terephthalic acid and derivatives thereof; 2-4 mol. % of a tribasic aromatic acid component (b) selected from trimellitic acid and derivatives thereof; 12-18 mol. % of a dibasic acid component (c) selected from dodecenylsuccinic acid, octylsuccinic acid, and anhydrides thereof; and 45-60 mol. % of an etherified diphenol component (d) obtained by propoxidation or/and epoxidation, each percentage being based on a total of the monomers. The polyester resin is characterized by having a hydroxyl value of 10-20, a weight-average molecular weight (Mw) of 13,000-20,000, a number-average molecular weight (Mn) of 5,000-8,000, and an Mw/Mn ratio of 2-3.5.
A color toner, comprising:
Dependencies are inferred from the claim text.