Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1993-12-10
1995-04-04
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430160, 430161, 430175, 430176, 430272, 430278, 430302, G03C 154, G03C 177, G03F 7021
Patent
active
054036941
ABSTRACT:
The present invention provides an imaging element comprising on a support in the order given, a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and being hardened with a hydrolyzed tetraalkyl orthosilicate crosslinking agent and a light sensitive layer containing a diazo resin or a diazonium salt characterized in that an intermediate hydrophilic layer containing an organic compound having one or more cationic groups is provided between said hydrophilic layer and said light-sensitive layer. There is further provided a method for making such an imaging element and a method for making a lithographic printing plate therewith.
REFERENCES:
patent: 3971660 (1976-07-01), Staehle
patent: 4284705 (1981-09-01), Phlipot et al.
patent: 4483913 (1984-11-01), Eklund et al.
Hauquier Guido
Kokkelenberg Dirk
Vermeersch Joan
Agfa-Gevaert N.V.
Bowers Jr. Charles L.
Chu John S.
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