EPOXY RESIN COMPOSITION, CURED PRODUCT, ADHESIVE, MOLDING MATERIAL AND FIBER-REINFORCED PLASTIC

• Main Authors: MATSUMURA KAZUNARI, KOIKE AI
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; 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; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

To provide: an epoxy resin composition capable of obtaining a cured product which exhibits excellent toughness and has high adhesive strength and impact strength and its cured product; an adhesive; a molding material; and a fiber-reinforced plastic.SOLUTION: There is provided an epoxy resin composition comprising a (meth)acrylic polymer (A) having a constitutional unit derived from a (meth)acrylate (a1) having a block isocyanate group and a constitutional unit derived from an alkyl (meth)acrylate (a2) and a curing agent, which can obtain a cured product exhibiting excellent toughness and having high adhesive strength and impact strength.SELECTED DRAWING: None 【課題】優れた靭性を示し、高い接着強度及び衝撃強度を有する硬化物が得られるエポキシ樹脂組成物とその硬化物、接着剤、成形材料及び繊維強化プラスチックを提供する。【解決手段】ブロックイソシアネート基を有する（メタ）アクリレート（ａ１）由来の構成単位およびアルキル（メタ）アクリレート（ａ２）由来の構成単位を有する（メタ）アクリル系重合体（Ａ）、エポキシ樹脂（Ｂ）及び硬化剤（Ｃ）を含むエポキシ樹脂組成物とすることで、優れた靭性を示し、高い接着強度及び衝撃強度を有する硬化物が得られる【選択図】なし