High sensitivity photopolymerizable composition

A high speed visible light sensitive photopolymerizable composition useful for printing plates comprising (a) at least one free radically polymerizable monomer having at least one ethylenically unsaturated group, (b) an ethylenically unsaturated free radically polymerizable oligomer having carboxyl...

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Bibliographische Detailangaben
Hauptverfasser:	BUSMAN, STANLEY C, ALI, MOHAMMAD Z
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY ELECTROGRAPHY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	A high speed visible light sensitive photopolymerizable composition useful for printing plates comprising (a) at least one free radically polymerizable monomer having at least one ethylenically unsaturated group, (b) an ethylenically unsaturated free radically polymerizable oligomer having carboxyl groups substituted thereon, (c) a visible light sensitizing initiator system for free radical polymerization comprising an initiator selected from diaryl iodonium salts, halogenated triazines, and triaryl iodonium salts which are photoinitiating electron acceptor compounds having a reduction potential in the range 0.0 to -1.5 eV, spectrally sensititzed with at least one merocyanine sensitizer containing a constrained alkylamino group, preferably a julolidinyl group.