公开(公告)号：EP0769512A2

公开(公告)日：1997-04-23

申请号：EP96116815.0

申请日：1996-10-18

申请人： MITSUI TOATSU CHEMICALS, INC.

发明人： Tamai, Shoji ,  Mori, Yukiko ,  Goto, Kenichi ,  Watanabe, Katsuji ,  Kohgo, Osamu ,  Shimizu, Kotaro ,  Kataoka, Toshiyuki ,  Kuroki, Takashi ,  Yamashita, Wataru ,  Mizuta, Hideki ,  Nagata, Teruyuki

IPC分类号： C08G69/04 ,  C08G69/26 ,  C08G73/10 ,  C08G75/26 ,  C08G63/87 ,  C08G63/82

CPC分类号： C08G73/1007 ,  C08G63/823 ,  C08G63/87 ,  C08G69/04 ,  C08G69/28 ,  C08G75/26

摘要： The invention provides a novel preparation process of a polycondensation type polymer, an excellent polymer which is represented by lactic acid and the preparation process of the polymer, a polycondensation agent used for the preparation process, and an intermediate. Specifically, the invention provides a preparation process of the polycondensation type polymer, for example, polyamide, polyimide, polythioester and polyester, comprising bonding a carboxyl group comprising compound with an active hydrogen group comprising compound in the presence of haloiminium salt. The invention provides excellent polylactic acid having a controlled D/L-isomer ratio in the repeating structural units and preparation process of polylactic acid, and further provides a haloiminium salt compound used for the preparation process and an intermediate compound of acid chloride.

摘要翻译： 本发明提供了一种缩聚型聚合物的新型制备方法，由乳酸代表的优异聚合物和聚合物的制备方法，用于制备方法的缩聚剂和中间体。 具体地说，本发明提供缩聚型聚合物，例如聚酰胺，聚酰亚胺，聚硫酯和聚酯的制备方法，包括在卤代鎓盐的存在下将含羧基的化合物与含有活性氢的化合物结合。 本发明提供了在重复结构单元和聚乳酸的制备方法中具有受控的D / L异构体比例的优异的聚乳酸，并且还提供了用于制备方法的卤代亚铵盐化合物和酰氯的中间体化合物。