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
2006-09-26
2006-09-26
Ashton, Rosemary (Department: 1752)
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, C430S910000, C528S010000, C556S438000
Reexamination Certificate
active
07112397
ABSTRACT:
The present invention provides image-forming compositions and photosensitive lithographic plates which are excellent in sensitivity to infrared radiation, latitude of development, treatable area in m2, and printing durability. Specifically, the present invention provides an image-forming composition comprising (A) a polymeric compound obtainable by the addition reaction of a resinous polymer having one or more phenolic hydroxyl groups with a silane coupling agent of the following general formula (1) or (2), (B) an acid generator, (C) an infrared absorber, and (D) an alkali-soluble resin, and a photosensitive lithographic plate having this image-forming composition applied onto a substrate.wherein X1and X2each represent a trimethoxysilyl group or the like; G1represents O or COO; R1and R2each independently represents a hydrogen atom or a methoxy group; R3represents (CH2)mwhich may have a hydrocarbon side chain; G2represents O or COO; R4represents a hydrogen atom or a straight-chain or branched alkyl group; and R5represents (CH2)nwhich may have a hydrocarbon side chain.
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Alston & Bird LLP
Ashton Rosemary
Okamoto Chemical Industry Co., Ltd.
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