Peroxycarboxylic ester initiators derived from nitrogen heterocycles

A peroxycarboxylic ester photoinitiator has the formula R1-C(C=O)-O-O-R2 (I); R1 = alkyl; and R2 = an aromatic heterocyclic gp. contg. a first sp2 hybridised N-atom having 3 valence bonds comprising a single and a double bond forming art of the ring and one or more additional components selected fro...

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Bibliographic Details
Main Author HAUBRICH, JEANNE E
Format Patent
LanguageEnglish
French
German
Published 25.09.1996
Edition6
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
ELECTROGRAPHY
HETEROCYCLIC COMPOUNDS
HOLOGRAPHY
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MATERIALS THEREFOR
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A peroxycarboxylic ester photoinitiator has the formula R1-C(C=O)-O-O-R2 (I); R1 = alkyl; and R2 = an aromatic heterocyclic gp. contg. a first sp2 hybridised N-atom having 3 valence bonds comprising a single and a double bond forming art of the ring and one or more additional components selected from: (i) an additional sp2 hybridised N-atom having 3 valence bonds comprising a single and a double bond in conjugation with the first sp2 hybridised N-atom; (ii) an alkyl peroxycarboxylic ester gp.; and (iii) an electron-withdrawing gp. of Hammett sigma value greater than 0.1. Also claimed is a peroxycarboxylic ester photoinitiator of formula (I) in which R2 comprises an aromatic heterocyclic ring as above selected from pyrazine, pyrimidine, pyradazine, triazine, imidazole, furazan, oxazole and thiazole, to which is fused at least one aromatic structure.
Bibliography:Application Number: EP19960400569