A process for preparing high-functionality, highly branched polyureas comprises the steps a) reaction of an at least bifunctional capped diisocyanate or polyisocyanate with at least one at least bifunctional primary and/or secondary amine with elimination of the capping agent, b) intramolecular reaction of the reaction product from step a) to form a high-functionality, highly branched polyurea.
制备高官能度、高支化聚
脲的工艺包括以下步骤 a) 至少双官能度封端二
异氰酸酯或多
异氰酸酯与至少一种至少双官能度
伯胺和/或仲胺反应,并消除封端剂;b) 来自步骤 a) 的反应产物进行分子内反应,形成高官能度、高支化聚
脲。