CURABLE COMPOSITION

PROBLEM TO BE SOLVED: To provide a curable composition excellent in strain resistance of obtained cured article compared to conventional ones and maintaining its effects for long time.SOLUTION: There is provided a curable composition containing (A) component: a crosslinkable polymer, excluding a (meth)acrylic polymer containing a structural unit derived from a vinyl monomer having an alkyl group with 10 or more carbon atoms of 30 mass% or more, of 20 to 99.7 pts.mass, (B) component: a (meth)acrylic polymer having a reactive silyl group of 0.3 to 35 pts.mass and (C) component: a plasticizer of 0 to 79.7 pts.mass, wherein total sum of the (A) component to the (C) component is 100 pts.mass, and the (B) component has average 0.03 to 0.5 reactive silyl groups in a molecule and contains the structural unit derived from the vinyl monomer having the alkyl group with 10 or more carbon atoms of 30 mass% or more.SELECTED DRAWING: None 【課題】得られる硬化物の耐汚染性が従来よりも優れたものであるとともに、その効果が長期間に亘り持続される硬化性組成物を提供する。【解決手段】（Ａ）成分：架橋性重合体（ただし、炭素数１０以上のアルキル基を有するビニル系単量体に由来する構造単位を３０質量％以上含む（メタ）アクリル系重合体を除く）２０〜９９．７質量部、（Ｂ）成分：反応性シリル基を有する（メタ）アクリル系重合体０．３〜３５質量部、及び（Ｃ）成分：可塑剤０〜７９．７質量部を含む硬化性組成物であって（ただし、（Ａ）成分〜（Ｃ）成分の総計を１００質量部とする）、前記（Ｂ）成分は、１分子中に平均０．０３〜０．５個の反応性シリル基を有し、かつ、炭素数１０以上のアルキル基を有するビニル系単量体に由来する構造単位を３０質量％以上含む、硬化性組成物。【選択図】なし