| US 7,517,627 B2 | ||
| Toner, image forming method and process-cartridge | ||
| Ryota Kashiwabara, Numazu (Japan); and Satoshi Matsunaga, Mishima (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Dec. 16, 2005, as Appl. No. 11/304,602. | ||
| Application 11/304602 is a division of application No. 10/212150, filed on Aug. 06, 2002, granted, now 7,026,086. | ||
| Claims priority of application No. 2001-238205 (JP), filed on Aug. 06, 2001. | ||
| Prior Publication US 2006/0134543 A1, Jun. 22, 2006 | ||
| Int. Cl. G03G 9/087 (2006.01) | ||
| U.S. Cl. 430—109.3 [430/109.4] | 1 Claim |
| 1. A toner comprising: at least a binder resin, a colorant, a charge control agent and a wax, wherein
(a) the binder resin comprises a hybrid resin component having a polyester unit and a vinyl polymer unit;
(b) the toner exhibits a loss tangent (tan δ) of 1.0 at a temperature in a range of from 80° C. to 160° C.;
(c) the toner provides a DSC curve showing a heat-absorption peak in a temperature range of from 85° C. to 130° C. on temperature
increase as measured according to differential scanning calorimetry (DSC); and
(d) the polyester unit has an end-capped hydroxyl group produced by reaction with benzoic acid.
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