| abstract |
The present invention relates to a photocurable composition comprising (A) a polyester urethane acrylate, or methacrylate (A), (B) acrylamide, or methacrylamide component (B), and (C) a photoinitiator (C). wherein the polyester urethane acrylate, or methacrylate (A) is (A1) hydroxyalkylacrylate, or hydroxyalkylmethacrylate, (A2) aliphatic diisocyanate, aliphatic polyisocyanate, cycloaliphatic di Obtained by reacting an isocyanate, a cycloaliphatic polyisocyanate, an aromatic diisocyanate, or an aromatic polyisocyanate, or a mixture thereof, (A3) a polyester polyol, and (A4) optionally a second polyol. Compositions capable of producing cured three-dimensional molded articles having high toughness, high E modulus and impact strength are particularly suitable for the production of three-dimensional articles by stereolithography. |