NEW AROMATIC SULFONIUM SALT COMPOUND, PHOTOACID GENERATOR COMPOSED THEREOF, PHOTOPOLYMERIZABLE COMPOSITION CONTAINING THE SAME, RESIN COMPOSITION FOR OPTICAL SOLID-FORMING USE AND OPTICAL SOLID-FORMING METHOD

• Main Authors: NAKAYASHIKI AKIKAZU, TACHIKAWA HIROYUKI
• Format: Patent
• Language: English
• Published: 29.09.2005
• Edition: 7
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; DYES; ELECTROGRAPHY; HETEROCYCLIC COMPOUNDS; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; 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 new compound useful as a good photopolymerization initiator efficiently absorbing the light of a light source and quickly giving a cured product having good quality, a photoacid generator composed of the compound, a photopolymerizable composition containing the generator, a resin composition for optical solid-forming use and an optical solid-forming method using the composition. SOLUTION: The new aromatic sulfonium salt compound is expressed by general formula (I). The aromatic sulfonium salt compound is activated by the absorption of efficient long-wavelength light and acts as an excellent photoacid generator. The photopolymerizable composition containing the compound is quickly curable to form a cured product having good properties and, accordingly, the photoresist composed of the photopolymerizable composition has high sensitivity and high resolution. The use of a resin composition for optical solid-forming use containing the aromatic sulfonium salt compound provides an optical solid-forming method effective for eliminating the defects of conventional technique, preventing the inhibition of curing with oxygen, improving the precision in curing, giving small excess cured part, easily giving a formed product having a desired dimension, having high sensitivity to irradiation energy, giving sufficient cured depth and free from delamination trouble. COPYRIGHT: (C)2005,JPO&NCIPI