PHOTOSENSITIVE COMPOSITION AND NEW COMPOUND FOR USE IN THE SAME

• Main Author: HANAKI NAOYUKI
• Format: Patent
• Language: English
• Published: 01.02.2007
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; DYES; ELECTROGRAPHY; HETEROCYCLIC COMPOUNDS; HOLOGRAPHY; LAKES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC CHEMISTRY; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PAINTS; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a photosensitive composition using a new photoinitiation system having high sensitivity to an oscillation wavelength of an inexpensive short-wavelength semiconductor laser and also having high sensitivity to various wavelengths of 350-450 nm, and useful as a photosensitive layer of a lithographic printing original plate for scanning exposure adapted for a computer-to-plate (CTP) system excellent in work efficiency and economical efficiency, and a new dye compound usable in the photosensitive composition having high sensitivity to the oscillation wavelength of the inexpensive short-wavelength semiconductor laser. SOLUTION: The photosensitive composition contains (A) a sensitizing dye of which one-electron oxidized derivative produced by one electron oxidation of the dye is capable of releasing one or more electrons, (B) an initiator compound capable of generating a radical, an acid or a base, and (C) a compound of which physical or chemical property is irreversibly changed by at least one of a radical, an acid and a base. COPYRIGHT: (C)2007,JPO&INPIT