| 发明名称 |
Polymerization of tetrahydrofuran using trifluoromethane sulfonic acid monohydrate as catalyst |
| 摘要 |
A process for forming polytetramethylene ether glycol having a number average molecular weight of 600 to 2,200 by contacting tetrahydrofuran with 5 to 50 wt %, based on tetrahydrofuran, trifluoromethane sulfonic acid monohydrate and water at 20 DEG to 75 DEG C. is disclosed.
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| 申请公布号 |
US5155283(A) |
申请公布日期 |
1992.10.13 |
| 申请号 |
US19910733201 |
申请日期 |
1991.07.19 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
DORAI, SURIYANARAYAN;HIDA, GARY A. |
| 分类号 |
C08G65/20 |
主分类号 |
C08G65/20 |
| 代理机构 |
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代理人 |
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| 主权项 |
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