| 发明名称 |
PROCESS TO PRODUCE POLY(ALKYLENE ETHER)GLYCOL-CONTAINING POLYESTERS |
| 摘要 |
A process for producing a polyester that comprises 65 to 90 wt. % poly(alkylene ether) glycol. The process comprises the step of copolymerizing a preformed polyester polymer having an inherent viscosity of at least 0.4 dL/g and a poly(alkylene ether) glycol, to obtain said polyester comprising said 65 to 90 wt. % poly(alkylene ether glycol).
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| 申请公布号 |
WO03014195(A1) |
申请公布日期 |
2003.02.20 |
| 申请号 |
WO2002US27081 |
申请日期 |
2002.08.09 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HAYES, RICHARD, ALLEN |
| 分类号 |
C08G63/672;C08G63/80;(IPC1-7):C08G81/00 |
主分类号 |
C08G63/672 |
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