发明授权
- 专利标题: Process for the preparation of polyanhydrides
- 专利标题(中): 制备聚酐的方法
-
申请号: US832840申请日: 1997-04-04
-
公开(公告)号: US5905134A公开(公告)日: 1999-05-18
- 发明人: John J. Hufnagel , Ashok V. Bhatia , David A. Riley , Greg E. Robinson
- 申请人: John J. Hufnagel , Ashok V. Bhatia , David A. Riley , Greg E. Robinson
- 申请人地址: IL Abbott Park
- 专利权人: Abbott Laboratories
- 当前专利权人: Abbott Laboratories
- 当前专利权人地址: IL Abbott Park
- 主分类号: C08G67/04
- IPC分类号: C08G67/04 ; C08G63/00
摘要:
Polymers can be prepared in solution by continuously distilling solvent from a solution of diacid prepolymers.
公开/授权文献
- US5288175A Segmental precast concrete underpinning pile and method 公开/授权日:1994-02-22
信息查询