Invention Grant
- Patent Title: Toner
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Application No.: US16908857Application Date: 2020-06-23
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Publication No.: US11333989B2Publication Date: 2022-05-17
- Inventor: Tomohiro Unno , Kosuke Fukudome , Ryo Nagata , Tetsuya Kinumatsu , Mariko Yamashita
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2019-120149 20190627
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/08 ; G03G9/097

Abstract:
A toner containing a toner particle that contains a binder resin and a crystalline material, wherein, in measurement of powder dynamic viscoelasticity of the toner, when T(A)° C. is taken as an onset temperature for a storage elastic modulus E′ obtained at a ramp rate of 20° C./min, EA′(100) Pa is taken as a storage elastic modulus at 100° C. obtained at a ramp rate of 20° C./min, and T(B)° C. is taken as an onset temperature for a storage elastic modulus E′ obtained at a ramp rate of 5° C./min, T(A)−T(B) is 3.0° C. or less, T(A) is from 45.0° C. to 70.0° C., and EA′(100) is from 4.0×109 Pa to 6.5×109 Pa.
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