The present invention provides a novel polycarbonate diol and a polyurethane using the polycarbonate diol as raw materials. The novel polycarbonate diol produces polycarbonate diol-based polyurethane which has a high degree of hardness, superior abrasion resistance, and superior hydrophilicity, and is usable for an application such as a paint, a coating agent, a synthetic leather, an artificial leather, and a highly-functional elastomers, or the like. The present invention also provides an active-energy radiation curable polymer composition giving a cured film having a superior contamination resistance and high degree of hardness. The present invention is obtained, for example, by reacting specific two types of diols with diester carbonate in the presence of a transesterification catalyst being a compound using a metal of Group 1 or 2 on the periodic table. The present invention provides a polycarbonate diol wherein the metal content of the transesterification catalyst is 100 weight ppm or less, a polyurethane obtainable by using this polycarbonate diol and an active-energy radiation curable polymer composition containing the urethane(meth)acrylate oligomer which is obtained from the polycarbonate diol.
本发明提供了一种新型聚
碳酸酯二元醇和一种以该聚
碳酸酯二元醇为原料的聚
氨酯。这种新型聚
碳酸酯二元醇生产的聚
碳酸酯二元醇基聚
氨酯具有高硬度、优异的耐磨性和亲
水性,可用于涂料、涂层剂、合成革、人造革和高功能弹性体等应用。本发明还提供了一种活性能量辐射固化聚合物组合物,其固化膜具有优异的抗污染性和高硬度。例如,本发明是通过使特定的两种二元醇与
碳酸二酯在转酯化催化剂(使用元素周期表中第 1 或第 2 族
金属的化合物)存在下发生反应而获得的。本发明提供了一种聚
碳酸酯二元醇(其中酯交换催化剂的
金属含量为 100 重量ppm 或更少)、一种可通过使用这种聚
碳酸酯二元醇获得的聚
氨酯,以及一种含有从聚
碳酸酯二元醇中获得的聚
氨酯(甲基)
丙烯酸酯低聚物的主动能辐射固化聚合物组合物。