CURABLE RESIN COMPOSITION, DRY FILM, CURED PRODUCT AND ELECTRONIC COMPONENT

To provide a curable resin composition or the like capable of obtaining a cured product having excellent reliability which improves compatibility of a curable resin having a repeating unit derived from a maleimide-based monomer and a repeating unit derived from an unsaturated carboxylic acid monomer.SOLUTION: There is provided a curable resin composition or the like which is a curable resin composition comprising (A) a curable copolymer resin having a first repeating unit represented by the following formula (1) and a second repeating unit represented by the following formula (2), (B) a thermosetting resin and (C) an acrylic copolymer compound different from the component (A), wherein the blending amount of the component (C) is 0.01 to 5 pts.mass based on the total 100 pts.mass of the component (A) and the component (B).SELECTED DRAWING: None 【課題】マレイミド系単量体に由来する繰り返し単位と不飽和カルボン酸単量体に由来する繰り返し単位とを有する硬化性樹脂の相溶性を向上し、信頼性に優れた硬化物が得られる硬化性樹脂組成物等を提供する。【解決手段】（Ａ）下記式（１）で表される第１繰り返し単位と、下記式（２）で表される第２繰り返し単位とを有する硬化性共重合樹脂、（Ｂ）熱硬化性樹脂、および、（Ｃ）前記（Ａ）成分と異なるアクリル系共重合化合物を含む硬化性樹脂組成物であって、前記（Ａ）成分と前記（Ｂ）成分の配合量の合計１００質量部あたり、前記（Ｃ）成分の配合量が０．０１〜５質量部であることを特徴とする硬化性樹脂組成物等である。【選択図】なし