JPH0471094B

• Main Authors: TAKE MORIO, YOSHIMURA SUSUMU, AYANO SATOSHI, KANEHARA HIDENORI
• Format: Patent
• Language: English
• Published: 12.11.1992
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; CINEMATOGRAPHY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; ELECTROGRAPHY; FILLING PASTES; HOLOGRAPHY; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

PURPOSE:A resin composition excellent in heat resistance and curable with light, heat or electron beams, obtained by mixing a curable resin obtained from a polycyanate ester having a plurality of cyanato groups with a photocrosslinking monomer, a photosensitizer, a heat-curing catalyst, etc. CONSTITUTION:A polycyanate ester (A) having at least two cyanato groups in the molecule (e.g., 1,4-dicyanatobenzene) or its prepolymer is reacted with a compound (B) having both a 1,2-epoxy group and a radical-polymerizable double bond in the molecule (e.g., glycidyl acrylate) in such a ratio that 0.25-2 1,2- epoxy groups of component B are present per cyanato group of component A at 90-140 deg.C in the presence of a radical polymerization initiator. The produced curable resin is mixed with a photocrosslinkable monomer (prepolymer) and a photosensitizer (photopolymerization initiator) or a heat-curing catalyst (curing agent) to obtain the titled resin composition.