ACTIVE ENERGY RAY-CURABLE COMPOSITION
PROBLEM TO BE SOLVED: To provide an active energy ray-curable composition which cures promptly upon irradiation with an active energy ray and realizes excellent transparency and flexibility of the obtained cured product, without deformation caused by the curing.SOLUTION: An active energy ray-curable...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an active energy ray-curable composition which cures promptly upon irradiation with an active energy ray and realizes excellent transparency and flexibility of the obtained cured product, without deformation caused by the curing.SOLUTION: An active energy ray-curable composition is produced which comprises: a (meth)acrylic block copolymer (A) comprising a (meth)acrylic polymer block (a) having active energy ray-curable groups including a partial structure represented by the general formula (1) in the figure, and an acrylic polymer block (b) without active energy ray-curable groups; and a methacrylic polymer (B) having active energy ray-curable groups including a partial structure represented by the general formula (1) in the figure. (In the formula, Rrepresents a hydrogen atom or C1-20 hydrocarbon group.)SELECTED DRAWING: None
【課題】活性エネルギー線の照射によって速やかに硬化して、かかる硬化によって、変形がなく、得られる硬化物の透明性、柔軟性に優れる活性エネルギー線硬化性組成物を提供する。【解決手段】下記一般式(1)で示される部分構造を含む活性エネルギー線硬化性基を有する(メタ)アクリル系重合体ブロック(a)および活性エネルギー線硬化性基を有さないアクリル系重合体ブロック(b)からなる(メタ)アクリル系ブロック共重合体(A)と、下記一般式(1)で示される部分構造を含む活性エネルギー線硬化性基を有するメタクリル系重合体(B)とを含有する活性エネルギー線硬化性組成物を作製する。(式中、R1は水素原子または炭素数1〜20の炭化水素基を表す)【選択図】なし |
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