公开(公告)号：US20170022320A1

公开(公告)日：2017-01-26

申请号：US15302581

申请日：2015-04-08

Applicant: WACKER CHEMIE AG

Inventor： Dermot O'Hare ,  Jean-Charles Buffet ,  Zoe Turner

IPC: C08G63/82 ,  C08G63/08 ,  C07F7/00 ,  C07F7/28 ,  C07F7/22

CPC classification number: C08G63/823 ,  B01J31/00 ,  B29C65/48 ,  C07F7/00 ,  C07F7/2208 ,  C07F7/222 ,  C07F7/28 ,  C07F17/00 ,  C08G63/08 ,  C08G65/336 ,  C08G77/70 ,  C08K3/26 ,  C08K5/0016 ,  C08K9/04 ,  C08K2003/265 ,  C08L83/00 ,  C08L101/10 ,  C09J11/04 ,  C09J183/14 ,  C09J201/10

Abstract: The present invention relates to a compound having the formula LaM(OR1)bR2cXd wherein M is a metal selected from Ti, Zr and Hf; L is a ligand selected from permethylpentalene, (hydro)permethyl-pentalene, (hydro)pentalene, cyclopentadiene, indene and ethylene- or silane-bridged indene, preferably (bis)indene; R1 is a 1-6C alkyl, substituted or unsubstituted phenyl, or a substituted or unsubstituted phenylalkylene group; R2 is Me or Et; X is halogen; a=1 to 3, b=1 to 3, c=0 or 1 and d=0, 1, 2 or 3; and dimers thereof, the use of the compound as an initiator in the polymerisation of lactide monomer and a process for producing a polylactide performed by contacting a lactide monomer with the compound.

Abstract translation: 本发明涉及具有式LaM（OR1）bR2cXd的化合物，其中M是选自Ti，Zr和Hf的金属; L是选自permethylpentalene，（hydro）permethyl-pentalene，（hydro）皮卡内烯，环戊二烯，茚和乙烯或硅烷桥连的茚，优选（双）茚的配体; R1是1-6C烷基，取代或未取代的苯基或取代或未取代的苯基亚烷基; R2是Me或Et; X是卤素; a = 1至3，b = 1至3，c = 0或1，d = 0,1,2或3; 其二聚物，在丙交酯单体的聚合中使用化合物作为引发剂，以及通过使丙交酯单体与化合物接触而制备聚丙交酯的方法。