- 专利标题： METHOD FOR THE PRODUCTION OF A POLYESTER CARBONATE
-
申请号： US17783790申请日： 2020-12-15
-
公开(公告)号： US20230040523A1公开(公告)日： 2023-02-09
- 发明人: Jan HEIJL , Annabelle BERTIN , Alexander MEYER , Helmut Siegen HEUER
- 申请人： COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
- 申请人地址： DE Leverkusen
- 专利权人： COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
- 当前专利权人： COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
- 当前专利权人地址： DE Leverkusen
- 优先权： EP19216474.7 20191216
- 国际申请： PCT/EP2020/086088 WO 20201215
- 主分类号： C08G63/64
- IPC分类号： C08G63/64 ; C08G63/83 ; C08G63/87
摘要：
The present invention relates to a method for producing an aliphatic polyester carbonate, the polyester carbonate itself, and to moulding compositions and moulded articles containing the polyester carbonate. The claimed method is characterised in particular in that the method comprises three steps and the last step is a melt transesterification method in the presence of two catalysts.
信息查询
