Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
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.
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patent: 2006/0172210 (2006-08-01), Yamate et al.
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English translation of JP 2004-046142 published Feb. 2004.
Yamate Osamu
Yasumatsu Masashi
Orient Chemical Industries Ltd.
Rodee Christopher
Steptoe & Johnson LLP
Vajda Peter L
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