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US 6,203,959 B1Granted
Toner
AssigneeCanon Kabushiki Kaisha
InventorsHirohide Tanikawa, Masami Fujimoto, Takakuni Kobori, Hiroyuki Fujikawa
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AssigneeCanon Kabushiki Kaisha
InventorsHirohide Tanikawa, Masami Fujimoto, Takakuni Kobori, Hiroyuki Fujikawa
Estimating the term…
An electrophotographic toner is formed of a resinous composition including a binder resin and a wax (A). The wax (A) contains at least 92 wt. % thereof of n (normal)-paraffin comprising a plurality of n-paraffin species having different numbers of carbon atoms, and provides a DSC (differential scanning calorimetry)-heat-absorption curve exhibiting a maximum heat-absorption peak showing a peaktop temperature of 70-90° C. and a half-value width of at most 12° C. As a result of the n-paraffin-rich characteristic and the DSC-thermal characteristic, the wax can exhibit an improved fixability-improving effect without showing an excessive plasticizing effect, whereby the toner can exhibit good fixability as well as good flowability and storage stability.
A toner, comprising a resinous composition including a binder resin and a wax (A), wherein the wax (A) contains at least 92 wt. % thereof of n (normal)-paraffin comprising a plurality of n-paraffin species having different numbers of carbon atoms, and provides a DSC (differential scanning calorimetry)-heat-absorption curve exhibiting a maximum heat-absorption peak showing a peaktop temperature of 70-90° C. and a half-value width of at most 12° C.
Dependencies are inferred from the claim text.