申请人:Evonik Operations GmbH
公开号:EP3838592A1
公开(公告)日:2021-06-23
The present invention relates to a composition comprising the reaction product of a polyester polyol and a compound comprising at least one functional group that can react with a hydroxyl-group of the polyester polyol and at least one further functional group, selected from acrylate- or methacrylate-group, wherein the polyester polyol is based on at least one organic acid comprising at least two carboxyl groups or its anhydride and at least one polyol comprising at least two hydroxy-groups, wherein the reaction product has a glass transition temperature Tg of below 23 °C, wherein the composition optionally further comprises a photoinitiator, to a process for obtaining such a composition, and to the use of the composition as a photopolymerisable material in an additive manufacturing process.
本发明涉及一种组合物,该组合物包含聚酯多元醇和一种化合物的反应产物,该化合物包含至少一个可与聚酯多元醇的羟基反应的官能团和至少一个选自丙烯酸酯或甲基丙烯酸酯官能团的其他官能团、其中聚酯多元醇基于至少一种包含至少两个羧基或其酸酐的有机酸和至少一种包含至少两个羟基的多元醇,其中反应产物的玻璃化温度 Tg 低于 23 °C,其中该组合物可选择地进一步包含光引发剂,以及获得该组合物的工艺,以及该组合物在添加制造工艺中作为可光聚合材料的用途。