Invention Grant
- Patent Title: Positive electrified charge control agent and positive electrified toner for developing electrostatic image
- Patent Title (中): 正电充电控制剂和用于静电图像显影的正极带电调色剂
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Application No.: US11730446Application Date: 2007-04-02
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Publication No.: US07875412B2Publication Date: 2011-01-25
- Inventor: Osamu Yamate , Masashi Yasumatsu
- Applicant: Osamu Yamate , Masashi Yasumatsu
- Applicant Address: JP Osaka
- Assignee: Orient Chemical Industries, Ltd.
- Current Assignee: Orient Chemical Industries, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Steptoe & Johnson, LLP
- Priority: JP2006-102410 20060403
- Main IPC: G03G9/097
- IPC: G03G9/097

Abstract:
A positive electrified charge control agent comprising a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II) (in the formula (I) and formula (II), [D-(SO3)2]2− is a bivalent anion of an organic acid having at least two sulfonic acid groups, p is 0 or 1, B is a bonding line when p is 0, B is a carbon atom or a nitrogen atom when p is 1, J is a carbon atom or a nitrogen atom, A is an organic group which forms a ring with (B)p and J, both of R are same or different to each other and are an organic group, and these both of R are independent or form a heterocyclic ring). A positive electrified toner for developing an electrostatic image comprises the positive electrified charge control agent. A charge control method of the positive electrified toner for developing the electrostatic image comprises a step for making the toner positively electrified by friction.
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