PROCESS FOR PRODUCING POLYCARBONATES AND A COORDINATION COMPLEX USED THEREFOR
申请人:SK INNOVATION CO., LTD.
公开号:US20140249323A1
公开(公告)日:2014-09-04
The complex of the present invention containing an onium salt and a central Lewis acidic metal has a high catalytic activity at a high temperature for the copolymerization of an epoxide and carbon dioxide to produce a high molecular weight polycarbonate.