Toners comprising modified pigments and processes for...

Details Toners comprising modified pigments and processes for... Toners comprising modified pigments and processes for...

2006-01-24

2010-02-02

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...

C430S108900, C430S137140, C430S137150, C430S137170

Reexamination Certificate

active

07655372

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.

REFERENCES:
patent: 4105572 (1978-08-01), Gorondy
patent: 4117498 (1978-09-01), Edwards et al.
patent: 5955232 (1999-09-01), Little et al.
patent: 6218067 (2001-04-01), Belmont
patent: WO97/47692 (1997-12-01), None
patent: WO99/05575 (1999-02-01), None
patent: WO00/28386 (2000-05-01), None
International Search Report and the Written Opinion for PCT/US2006/002622.

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