Photopolymerizable composition

Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...

Reexamination Certificate

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C430S283100, C430S944000, C430S916000, C430S923000, C430S921000, C430S925000, C430S929000, C430S910000, C430S920000, C430S918000, C430S926000

Reexamination Certificate

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06838222

ABSTRACT:
A photopolymerizable composition that is cured with visible light or an infrared laser and is used as a recording layer in a negative planographic printing plate precursor. The photopolymerizable composition is cured by exposure and includes (A) a polymerizable compound that is solid at 25° C. and has at least one radical-polymerizable ethylenically unsaturated double bond in a molecule, (B) a radical polymerization initiator, (C) a binder polymer and, as required, (D) a compound generating heat by infrared exposure.

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