Invention Grant
- Patent Title: Ester wax, toner, developer, toner storing unit, and image forming apparatus
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Application No.: US15451539Application Date: 2017-03-07
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Publication No.: US10261432B2Publication Date: 2019-04-16
- Inventor: Toshiyuki Kabata , Hiroyuki Shimada , Takeshi Shibuya
- Applicant: Toshiyuki Kabata , Hiroyuki Shimada , Takeshi Shibuya
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2016-047960 20160311; JP2017-026217 20170215
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G15/20

Abstract:
An ester wax is provided. The ester wax includes a long-chain aliphatic ester represented by the following formula: R—COO—R′ wherein R represents an alky group having 13 to 23 carbon atoms and R′ represents an alkyl group having 18 to 22 carbon atoms. The ester wax further includes an aliphatic alcohol having 18 to 22 carbon atoms in an amount less than 3% by mass based on a total mass of the ester wax.
Public/Granted literature
- US20170261876A1 ESTER WAX, TONER, DEVELOPER, TONER STORING UNIT, AND IMAGE FORMING APPARATUS Public/Granted day:2017-09-14
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