Lithographic printing plate precursor and polymerizable...

Details Lithographic printing plate precursor and polymerizable... Lithographic printing plate precursor and polymerizable...

2004-07-29

2008-11-25

Walke, Amanda C. (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S270100, C430S284100, C430S945000

Reexamination Certificate

active

07455954

ABSTRACT:
A polymerizable composition containing: (A) a polyurethane compound soluble or swellable in water or an aqueous alkali solution which is obtained by reacting at least one diol compound having an unsaturated bond in a main chain and having a molecular weight of 500 or more with at least one polyisocyanate compound; (B) a radical initiator; and (C) a photothermal converting agent, and a polymerizable composition containing: (A′) a polyurethane resin which is soluble or swellable in water or an aqueous alkali solution and has an unsaturated carbon-carbon bond in its side chain; and (B) a radical initiator, wherein the polyurethane resin (A′) is obtained by adding an epoxy compound having an unsaturated carbon-carbon bond to a polyurethane resin having carboxyl group.

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