NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSOR AND USE

A lithographic printing plate precursor has an infrared radiation- sensitive imageable layer that includes one or more free radically polymerizable components, an initiator composition that provides free radicals upon exposure of the infrared radiation-sensitive imageable layer to infrared radiation...

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Bibliographic Details
Main Authors VIEHMANN, Philipp, SIMPSON, Christopher D, WERNER, Saija
Format Patent
LanguageEnglish
French
German
Published 24.02.2021
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
LINING MACHINES
MATERIALS THEREFOR
ORIGINALS THEREFOR
PERFORMING OPERATIONS
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
PRINTING
PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A lithographic printing plate precursor has an infrared radiation- sensitive imageable layer that includes one or more free radically polymerizable components, an initiator composition that provides free radicals upon exposure of the infrared radiation-sensitive imageable layer to infrared radiation, one or more infrared radiation absorbers, and optionally, a polymeric binder different from the one or more free radically polymerizable components. The initiator composition comprises an iodonium tetraaryl borate that is represented by the following formula (I): wherein Ar is independently unsubstituted phenyl or naphthyl groups, or substituted phenyl or naphthyl groups each having one or more electron-donating substituents; and R is a linear or branched organic group comprising 0 to 3 oxygen atoms and 2 to 5 carbon atoms, provided that R is directly attached to the oxygen atom with one of the carbon atoms.
Bibliography:Application Number: EP20170830076