Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2009-12-16
2010-06-08
Chapman, Mark A (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108800, C430S137140, C430S137150, C430S137170
Reexamination Certificate
active
07732115
ABSTRACT:
The present invention relates to toner compositions comprising a resin and a colorant. Various embodiments of the colorant used in the toner compositions are disclosed, including a modified pigment comprising a pigment having attached at least one organic group having the formula -X-I, wherein X, which is directly attached to the pigment, represents an arylene or heteroarylene group, or an alkylene group, and I represents a non-polymeric group comprising at least one ionic group or at least one ionizable group. Processes for preparing toner compositions are also described.
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patent: 5955232 (1999-09-01), Little et al.
patent: 6218067 (2001-04-01), Belmont
patent: WO 97/47692 (1997-12-01), None
patent: WO 99/05575 (1999-02-01), None
patent: WO 00/28386 (2000-05-01), None
Kyrlidis Agathagelos
Step Eugene N.
Cabot Corporation
Chapman Mark A
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