申请人:Covestro Deutschland AG
公开号:US10968165B2
公开(公告)日:2021-04-06
The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to <2% by weight fumaric acid dialkyl esters.
本发明涉及一种提纯聚天冬氨酸酯组合物的方法,以及提供含有 0.01% 至 <2% (按重量计)富马酸二烷基酯的聚天冬氨酸酯组合物。