Substrate for lithographic printing plate precursor

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making

Reexamination Certificate

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C428S461000

Reexamination Certificate

active

07416831

ABSTRACT:
Substrates for imageable elements are disclosed. The substrates comprise, in order, an aluminum or aluminum alloy support, a silicate layer, and a layer of interlayer material. The interlayer material is a co-polymer that comprise (1) phosphonic acid groups and/or phosphate groups and (2) acid groups and/or groups that comprise ethylene glycol or polyethylene glycol side chains. Imageable elements that comprise an imageable layer over the interlayer material are useful as lithographic printing plate precursors.

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