CURABLE RESIN COMPOSITION, COMPOSITION FOR FORMING PERMANENT COATING FILM, DRY FILM, AND PRINTED WIRING BOARD

• Main Authors: KONDO SHINOBU, MITANI TAKESHI, FUKUDA SHINICHIRO, HARIMA EIJI
• Format: Patent
• Language: English; Japanese
• Published: 18.01.2016
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; CINEMATOGRAPHY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; 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; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; 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; PRINTED CIRCUITS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a curable resin composition, a composition for forming a permanent coating film, a dry film, and a printed wiring board, excellent in various characteristics such as electric insulating property, adhesiveness, heat resistance, crack resistance, and gold plating resistance and excellent in electric insulating property and adhesiveness even in a severe environment with a high temperature, a high humidity or the like.SOLUTION: The curable resin composition comprises (A) a carboxyl group-containing resin, (B) an inorganic filler, (C) a thermosetting component, and (D) a compound having a urethane bond. The (A) carboxyl group-containing resin contains a carboxyl group-containing resin having a novolac skeleton; and the (C) thermosetting component contains a maleimide compound. 【課題】電気絶縁性、密着性、耐熱性、クラック耐性、金メッキ耐性等の諸特性に優れ、さらに高温、高湿等の厳しい環境下での電気絶縁性、密着性においても優れた硬化性樹脂組成物、永久被膜形成用組成物、ドライフィルムおよびプリント配線板を提供すること。【解決手段】Ａ）カルボキシル基含有樹脂、（Ｂ）無機充填剤、（Ｃ）熱硬化成分、及び（Ｄ）ウレタン結合を有する化合物を含む硬化性樹脂組成物であって、前記（Ａ）カルボキシル基含有樹脂が、ノボラック骨格を有するカルボキシル基含有樹脂を含み、前記（Ｃ）熱硬化成分が、マレイミド化合物を含むことを特徴とする硬化性樹脂組成物。【選択図】なし