摘要:
The present invention relates to a process for oligomerizing isocyanates, comprising a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is performed in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m 3 /°C.
摘要翻译:低聚异氰酸酯的方法包括在催化剂存在下将异氰酸酯单体连续转化成含有氨基甲酸酯和/或脲基甲酸酯基团的步骤,其中转化步骤在具有比热交换系数更大的反应器中进行 大于或等于约200kW / m 3 /℃