发明授权
US07405330B2 Preparation of polytrimethylene ether glycol and copolymers thereof
失效
聚三亚甲基醚二醇的制备及其共聚物
- 专利标题: Preparation of polytrimethylene ether glycol and copolymers thereof
- 专利标题(中): 聚三亚甲基醚二醇的制备及其共聚物
-
申请号: US11526037申请日: 2006-09-22
-
公开(公告)号: US07405330B2公开(公告)日: 2008-07-29
- 发明人: Mark Andrew Harmer , Christopher P. Junk , Leo Ernest Manzer
- 申请人: Mark Andrew Harmer , Christopher P. Junk , Leo Ernest Manzer
- 申请人地址: US DE Wilmington
- 专利权人: E.I. du Pont de Nemours and Company
- 当前专利权人: E.I. du Pont de Nemours and Company
- 当前专利权人地址: US DE Wilmington
- 主分类号: C07C41/03
- IPC分类号: C07C41/03
摘要:
The present invention relates to a process comprising using ionic liquids for the polycondensation of 1,3-propanediol reactants to produce polytrimethylene ether glycol and copolymers thereof.
公开/授权文献
信息查询