C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 9/02 (2006.01) B41M 3/14 (2006.01) B41M 5/26 (2006.01) B41M 5/28 (2006.01) B41M 5/46 (2006.01) B43M 11/08 (2006.01) C07C 65/38 (2006.01) C07C 69/76 (2006.01) C08B 37/00 (2006.01) C08B 37/16 (2006.01) C09B 67/42 (2006.01) C09D 11/00 (2006.01) C09D 11/16 (2006.01) G03G 9/08 (2006.01) G03G 9/087 (2006.01) G03G 9/09 (2006.01) G03G 9/097 (2006.01) G03G 13/22 (2006.01) G06K 1/12 (2006.01) G06K 19/06 (2006.01) G09C 5/00 (2006.01) B41M 5/40 (2006.01)
Patent
CA 2120838
Abstract A solid colored composition which includes a colorant and an ultraviolet radiation transorber. The colorant, in the presence of the ultraviolet radiationtransorber, is adapted, upon exposure of the transorber to ultraviolet radiation, to be mutable. The ultraviolet radiation transorber is adapted to absorb ultraviolet radiation and interact with the colorant to effect the irreversible mutation of the colorant. By way of example, the solid colored composition can be a toner adapted to be utilized in an electrophotographic process. The toner includes the colorant and ultraviolet radiation transorber as just described, and a carrier. The carrier can be a polymer, and the toner may contain a charge carrier. The ultraviolet radiation in general will have wavelengths of from about 100 to about 375 nanometers. Especially useful incoherent, pulsed ultraviolet radiation is produced by a dielectric barrier discharge excimer lamp.
Macdonald John Gavin
Mcginniss Vincent Daniel
Nohr Ronald Sinclair
Whitmore Robert Samuel JR.
Borden Ladner Gervais Llp
Kimberly-Clark Corporation
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