Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Reexamination Certificate
2006-12-04
2010-10-12
Kelly, Cynthia H (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
C430S271100, C430S281100, C430S138000, C430S270100, C101S453000, C101S463100
Reexamination Certificate
active
07811743
ABSTRACT:
A method for preparing a lithographic printing plate comprising: exposing a lithographic printing plate precursor comprising a hydrophilic support, a photosensitive layer containing (A) a sensitizing dye having an absorption maximum in a wavelength range of from 350 to 450 nm represented by the formula (I) or (II) as defined herein, (B) a polymerization initiator, (C) a polymerizable compound and (D) a hydrophobic binder polymer having an acid value of 0.3 meq/g or less and a protective layer provided in this order with a laser beam of from 350 to 450 nm; and rubbing a surface of the exposed lithographic printing plate precursor with a rubbing member in a presence of a developer having pH of from 2 to 10 in an automatic processor equipped with the rubbing member to remove the protective layer and an unexposed area of the photosensitive layer.
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FUJIFILM Corporation
Kelly Cynthia H
Robinson Chanceity N
Sughrue & Mion, PLLC
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