Method to reduce imaging effluence in processless thermal...

Details Method to reduce imaging effluence in processless thermal... Method to reduce imaging effluence in processless thermal...

2005-01-25

2005-01-25

Gilliam, Barbara (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S171000, C430S281100, C430S283100, C430S286100, C430S288100, C430S302000, C430S348000, C430S964000

Reexamination Certificate

active

06846608

ABSTRACT:
A method to reduce effluence during or immediately after imaging of a printing plate is described. In one embodiment of the invention, the method comprises: (a) applying to a substrate a coating composition comprising a photothermal converter and at least one polymer comprising thiosulfate groups to obtain a coating; and (b) applying a water soluble topcoat to the coating. Preferably, the water soluble topcoat does not comprise a photothermal converter. In another embodiment of the invention, the method comprises applying to a substrate a composition comprising: (a) a photothermal converter; (b) at least one polymer comprising thiosulfate groups; and (c) an additive selected from the group consisting of diazonium, iodonium, copper(I), alkoxypyridinium or maleimide additives.

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