发明名称 |
PROCESSES FOR PREPARING POLYTRIMETHYLENE ETHER GLYCOL |
摘要 |
Provided are processes for preparing low molecular weight polytrimethylene ether glycol by acid catalyzed polycondensation, neutralization, removal of unreacted monomer, and contact with filter aid. The processes can avoid hydrolysis and yet provide product substantially free of catalyst derived end groups. |
申请公布号 |
EP2702089(A4) |
申请公布日期 |
2014.12.24 |
申请号 |
EP20120776683 |
申请日期 |
2012.04.23 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MULIAWAN, EDWARD BUDI;SUNKARA, HARI, BABU;POLADI, RAJA HARI |
分类号 |
C08G65/34;C08G65/46;C08L71/08 |
主分类号 |
C08G65/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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