Appeal No. 2001-0241
Application No. 08/997,373
monomer, (B) a photopolymerization initiator, and (C) a polymer
binder, wherein the addition-polymerizable ethylenically
unsaturated bond-containing monomer (A) contains a phosphate
compound having at least one (meth)acryloyl group.
The examiner relies upon the following references as
evidence of obviousness:
Dickie et al. (Dickie) 4,039,722 Aug. 2, 1977
Dueber et al. (Dueber) 4,555,473 Nov. 26, 1985
Nishikawa et al. (Nishikawa) 5,104,743 Apr. 14, 1992
Lauke et al. (Lauke) 5,262,278 Nov. 16, 1993
Meier et al. (Meier) 5,286,611 Feb. 15, 1994
Nippon Light Metal Co., Ltd. Sho 53-67507 June 16, 1978
(Japanese Kokai Patent Application, hereinafter referred to as
"Nippon")
Appellants' claimed invention is directed to a photo-
sensitive lithographic printing plate having a resin layer
comprising an ethylenically unsaturated monomer containing a
phosphate compound and at least one (meth)acryloyl group. The
support of the printing plate is an aluminum substrate that has
been subjected to electrolytic surface roughening in nitric acid
and to further anodic oxidation treatment. According to
appellants, they have unexpectedly found that the combination of
the nitric acid-treated aluminum support and a photosensitive
resin layer comprising the phosphate-containing ethylenically
unsaturated monomer results in "a photosensitive lithographic
printing plate excellent in all of printing resistance,
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