发明授权
- 专利标题: Polyester process
- 专利标题(中): 聚酯工艺
-
申请号: US120649申请日: 1998-07-22
-
公开(公告)号: US6063827A公开(公告)日: 2000-05-16
- 发明人: Guerino G. Sacripante , Daniel A. Foucher , J. Stephen Kittelberger , Dongming Li , Marko D. Saban , Alan E. J. Toth , Robert D. Bayley
- 申请人: Guerino G. Sacripante , Daniel A. Foucher , J. Stephen Kittelberger , Dongming Li , Marko D. Saban , Alan E. J. Toth , Robert D. Bayley
- 申请人地址: CT Stamford
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: CT Stamford
- 主分类号: C08G63/52
- IPC分类号: C08G63/52 ; C08G63/58 ; C08G63/676 ; C08G63/78 ; C08G63/83 ; G03G9/087 ; C08F2/46 ; C08G63/00 ; C08J5/09
摘要:
A process for the preparation of an unsaturated polyester which comprises (i) reacting an organic diol with a cyclic akylene carbonate in the presence of a first catalyst to thereby form a polyalkoxy diol, and (ii) optionally adding thereto a further amount of cyclic alkylene carbonate in the presence of a second catalyst, and (iii) subsequently polycondensing the resulting mixture with a dicarboxylic acid.
公开/授权文献
- US4286374A Large scale integrated circuit production 公开/授权日:1981-09-01