프리프레그용 수지 조성물, 프리프레그 및 성형품

• Main Authors: TAKIKAWA YUKO, SHINCHI TOMOAKI
• Format: Patent
• Language: Korean
• Published: 29.04.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

폴리이소시아네이트(a1)와, 폴리올(a2)과, 히드록시알킬(메타)아크릴레이트(a3)와의 반응물인 우레탄(메타)아크릴레이트(A), 중합개시제(B), 및 열가소성 수지(C)를 필수 성분으로 하는 프리프레그용 수지 조성물로서, 상기 폴리이소시아네이트(a1)가, 2,4'-디페닐메탄디이소시아네이트, 4,4'-디페닐메탄디이소시아네이트, 4,4'-디페닐메탄디이소시아네이트의 카르보디이미드 변성체, 및 폴리메틸렌폴리페닐폴리이소시아네이트에서 선택되는 1종 이상의 폴리이소시아네이트인 것을 특징으로 하는 프리프레그용 수지 조성물을 제공한다. 본 발명의 프리프레그용 수지 조성물은, 성형성이 우수하고, 유연성, 내충격성, 내열성 등의 각종 물성이 우수한 성형품이 얻어지므로, 프리프레그 및 그 성형품에 호적하게 사용할 수 있다. Provided is a prepreg resin composition, containing: a urethane (meth)acrylate (A) that is a reaction product of polyisocyanate (a1), polyol (a2), and hydroxy alkyl (meth)acrylate (a3); a polymerization initiator (B); and a thermoplastic resin (C), as an essential component, in which the polyisocyanate (a1) is at least one polyisocyanate selected from 2,4'-diphenyl methane diisocyanate, 4,4'-diphenyl methane diisocyanate, a carbodiimide modified product of 4,4'-diphenyl methane diisocyanate, and polymethylene polyphenyl polyisocyanate. The prepreg resin composition of the invention is excellent in molding properties, and is capable of forming a molded article excellent in various physical properties such as flexibility, impact resistance, and heat resistance, and thus, can be preferably used in a prepreg and a molded article thereof.