Radiation curable inks

Details Radiation curable inks Radiation curable inks

2005-01-14

2010-11-23

Berman, Susan W (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C522S014000, C522S015000, C522S025000, C522S075000, C522S083000, C522S170000, C522S181000, C522S182000

Reexamination Certificate

active

07838570

ABSTRACT:
An ink used preferably in jet ink devices includes an ink vehicle, the ink vehicle being made up either (a) a first component curable by a first polymerization route and an associated photointiator, and a second component curable by a second polymerization route and as associated photoinitiator, wherein the second polymerization route is different from the first polymerization route, or (b) a component curable by a single polymerization route with a first and a second photoinitiator system in which the first system responds to longer wavelengths. An image may be formed by such inks by jetting onto a transfer member surface, curing the first component or partially curing the single component while upon the transfer member surface, transferring the ink to an image receiving surface, and completing curing. The first component is preferably curable via cationic polymerization and the second component is preferably curable via free radical polymerization.

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Ciba Specialty Chemicals, ISO 9001, “Ciba Additives for Ultraviolet (UV) Curing”, pp. 2, 8, 16, 23, 25 and 44, 1997.

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