| 发明名称 |
Process for the reduction of carboxyl-end groups of linear polyesters |
| 摘要 |
A process for the reduction of the carboxyl end groups of linear polyester through reaction with alkylene carbonate in the melt phase in the presence of 40 to 160 ppm of allyltriphenyl phosphonium bromide, based on the weight of the polyester.
|
| 申请公布号 |
US5563209(A) |
申请公布日期 |
1996.10.08 |
| 申请号 |
US19950568874 |
申请日期 |
1995.12.07 |
| 申请人 |
ZIMMER AKTIENGESELLSCHAFT |
发明人 |
SCHUMANN, HEINZ-DIETER;WILHELM, FRITZ;KAEMPF, RUDOLF |
| 分类号 |
C08G63/91;(IPC1-7):C08K5/49 |
主分类号 |
C08G63/91 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
