ACTIVE ENERGY RAY-CURABLE RESIN COMPOSITION

To provide an active energy ray-curable resin composition which has low viscosity, is excellent in operativity, has high curability to active energy rays, and provides a molding after curing having both good tensile strength and elongation at break.SOLUTION: By using an active energy ray-curable res...

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Hauptverfasser:	KIYOSADA SHUNJI, SATO KOHEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS 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 ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	To provide an active energy ray-curable resin composition which has low viscosity, is excellent in operativity, has high curability to active energy rays, and provides a molding after curing having both good tensile strength and elongation at break.SOLUTION: By using an active energy ray-curable resin composition containing an unsaturated group-containing urethane oligomer (A) having a constitutional unit derived from a polyol compound (a1), a constitutional unit derived from an isocyanate compound (b1) and a constitutional unit derived from a hydroxyl group-containing (meth)acrylamide (c1), and an unsaturated group-containing urethane compound (B) that is a polycondensate of a polyisocyanate monomer (b2) and a hydroxyl group-containing (meth)acrylic compound (c2), tensile strength and elongation at break of a cured product are improved in a good balance, and a three-dimensional molding having good toughness can be obtained.SELECTED DRAWING: None 【課題】粘度が低く、操作性に優れ、活性エネルギー線に対する硬化性が高く、硬化後の成形物が良好な引張強度と破断伸度を同時に有する活性エネルギー線硬化性樹脂組成物を提供することを課題とする。【解決手段】ポリオール化合物（ａ１）に由来する構成単位と、イソシアネート化合物（ｂ１）に由来する構成単位と、水酸基含有（メタ）アクリルアミド（ｃ１）に由来する構成単位を有する不飽和基含有ウレタンオリゴマー（Ａ）と、ポリイソシアネート単量体（ｂ２）と水酸基含有（メタ）アクリル系化合物（ｃ２）との重縮合物である不飽和基含有ウレタン化合物（Ｂ）を含有する活性エネルギー線硬化性樹脂組成物を用いることで、硬化物の引張強度と破断伸度をバランスよく向上させ、強靭性の良好な三次元造形物を得ることができる。【選択図】なし