Patent ID: 7727695
Filing Date: 2010-06-01
Classification: G03G

Abstract:
1. An electrophotographic toner comprising a binding resin, a colorant and a releasing agent, wherein the releasing agent comprises a first releasing agent component and a second releasing agent component, the first releasing agent component is a straight chain hydrocarbon compound exhibiting a melting point of 50 to 100° C. and the second releasing agent component is a branched hydrocarbon compound exhibiting a melting point of 50 to 100° C. and the second releasing agent component accounting for 5% to 90% by mass of the total amount of the first and second releasing agent components, and wherein the straight chain hydrocarbon compound exhibits a weight average molecular weight (Mw) of 300 to 500 and a number average molecular weight (Mn) of 300 to 500, and the ratio (Mw/Mn) of the weight average molecular weight to the number average molecular weight being from 1.0 to 1.20.