Imageable element with masking layer comprising...

Details Imageable element with masking layer comprising... Imageable element with masking layer comprising...

2006-04-18

2006-04-18

Schilling, Richard L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Radiation mask

C430S270100, C430S273100, C430S302000, C430S306000, C430S330000, C430S910000, C430S964000

Reexamination Certificate

active

07029805

ABSTRACT:
Thermally imageable elements comprising a masking layer and a substrate are disclosed. The masking layer contains a sulfobetaine and/or a carboxybetaine containing co-polymer or a mixture of a sulfobetaine and/or a carboxybetaine containing co-polymers and absorbs both infrared and ultraviolet radiation. When the masking layer is on the substrate, the imageable element may be imaged and developed to form a photomask. When the imageable element additionally comprises a photosensitive layer, the masking layer may be imaged and developed to form an integral photomask. The imageable elements that comprise a photosensitive layer are useful as flexographic printing plate precursors.

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