Invention Grant
- Patent Title: Toner for electrostatic image development
- Patent Title (中): 调色剂用于静电图像显影
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Application No.: US13309921Application Date: 2011-12-02
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Publication No.: US08435710B2Publication Date: 2013-05-07
- Inventor: Satoshi Kunii , Masahito Yamazaki
- Applicant: Satoshi Kunii , Masahito Yamazaki
- Applicant Address: JP Tokyo
- Assignee: Kao Corporation
- Current Assignee: Kao Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-283519 20101220
- Main IPC: G03G9/00
- IPC: G03G9/00

Abstract:
A toner for electrostatic image development containing an external additive comprising composite oxide particles made of titania and silica (external additive A), and hydrophobic silica particles (external additive B), wherein the external additive A has a core-shell structure in which a core portion is made of titania and a shell portion is made of silica, wherein the titania is contained in the external additive A in an amount of from 75 to 95% by weight, and wherein the external additive B has a carbon content of from 2.8 to 6.0% by weight. The toner for electrostatic image development of the present invention is suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.
Public/Granted literature
- US20120156603A1 TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT Public/Granted day:2012-06-21
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