Positive electrified charge control agent and positive...

Details Positive electrified charge control agent and positive... Positive electrified charge control agent and positive...

2011-01-25

2011-01-25

RoDee, Christopher (Department: 1721)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

C430S108100, C430S108240, C430S123410, C549S004000, C549S214000, C556S406000, C556S408000

Reexamination Certificate

active

07875412

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)pand 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.

REFERENCES:
patent: 5545502 (1996-08-01), Ono et al.
patent: 2006/0172210 (2006-08-01), Yamate et al.
patent: 2007/0037083 (2007-02-01), Yamate et al.
patent: 62-062369 (1987-03-01), None
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patent: 03-276166 (1991-12-01), None
patent: 04-293057 (1992-10-01), None
patent: 2004-046142 (2004-02-01), None
patent: 2004-143049 (2004-02-01), None
English translation of JP 2004-046142 published Feb. 2004.

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