Multilayer imageable element with improved chemical resistance

Radiation imagery chemistry: process – composition – or product th – Imaged product – Multilayer

Reexamination Certificate

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C430S271100, C430S302000, C430S964000

Reexamination Certificate

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07144661

ABSTRACT:
Positive-working imageable elements comprise a radiation absorbing compound and inner and outer layers on a substrate having a hydrophilic surface. The inner layer comprises a polymer that is removable using an alkaline developer and in which from about 1 to about 50 mol % of its recurring units are derived from one or more of the ethylenically unsaturated polymerizable monomers represented by the following Structure (I):in-line-formulae description="In-line Formulae" end="lead"?CH2═C(R1)C(═O)NR2(CR3R4)nOH   (I)in-line-formulae description="In-line Formulae" end="tail"?wherein R1, R2, R3, and R4are independently hydrogen, lower alkyl, or phenyl, and n is 1 to 20. The imageable elements having improved resistance to development and printing chemicals and solvents.

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