Substrate and imageable element with hydrophilic interlayer

Details Substrate and imageable element with hydrophilic interlayer Substrate and imageable element with hydrophilic interlayer

2008-06-17

2011-11-08

Kelly, Cynthia (Department: 1722)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S302000

Reexamination Certificate

active

08053162

ABSTRACT:
A substrate useful for forming lithographic printing plate precursors includes a metal or polymer support and an interlayer comprising a trialkoxysilyl polyethylene glycol acrylate having the following Structure (I):wherein R1and R2are independently hydrogen or C1to C6alkyl, C1to C6alkenyl, C1to C6alkoxy, C1to C6acyl, C1to C6acyloxy, phenyl, halo, or cyano groups, or R1and R2together can form a cyclic group, R3is hydrogen, or a C1to C6alkyl, phenyl, halo, or cyano group, R4and R5are independently hydrogen or methyl groups, R6is hydrogen or a C1to C12alkyl group, X1is —O— or —NR— wherein R is hydrogen or an alkyl or aryl group, X2is —NR′— wherein R′ is hydrogen or an alkyl or aryl group, m is an integer of from 15 to 200, and n is an integer of from 1 to 12. The lithographic printing plates can be negative-working and particularly useful for on-press development and have a sulfuric acid-anodized aluminum support.

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