Negative-working photosensitive material and...

Details Negative-working photosensitive material and... Negative-working photosensitive material and...

2011-06-07

2011-06-07

Chu, John S (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, C101S465000, C101S467000

Reexamination Certificate

active

07955781

ABSTRACT:
A negative-working photosensitive material is provided which includes: a support; an undercoat layer; and a photosensitive layer including a polymerization initiator, a polymerizable compound, and a binder polymer, wherein the support, the undercoat layer, and the photosensitive layer are sequentially layered, the undercoat layer includes a polymer including a structural unit (a) including at least one of a carboxylic acid or a carboxylic acid salt and a structural unit (b) including at least one carboxylic acid ester; and the content of the structural unit (a) in the polymer is from 30% to 90% by mole. Also, a negative-working planographic printing plate precursor including the negative-working photosensitive material is provided.

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