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.: US12434323Application Date: 2009-05-01
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Publication No.: US08187779B2Publication Date: 2012-05-29
- 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: JP2008-124896 20080512
- Main IPC: G03G9/00
- IPC: G03G9/00

Abstract:
A toner for electrostatic image development containing a resin binder and a charge control agent, wherein the resin binder contains a polyester A obtained by polycondensing a carboxylic acid component containing isophthalic acid and/or an ester thereof, and an alcohol component, and wherein the charge control agent contains an azo-iron complex represented by the formula (I): wherein each of R1 and R4, which may be identical or different, is a linear or branched alkyl group having 3 to 8 carbon atoms; each of R2, R3, R5, and R6, which may be identical or different, is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, a halogen atom, a nitro group, or a carboxyl group; and A+ is a cation. The toner for electrostatic image development is suitably used in developing latent images formed in, for example, electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.
Public/Granted literature
- US20090280426A1 TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT Public/Granted day:2009-11-12
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