发明名称 |
Processes for the polymerization of trimethylene carbonate to poly(trimethylene glycol carbonate trimethylene glycol ether) diol |
摘要 |
This invention relates to solventless processes for the polymerization of an unsubstituted or substituted trimethylene carbonate to an unsubstituted or substituted poly(1,3-propanediol carbonate 1,3-propanediol ether)diol, using one or more solid acid catalysts.
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申请公布号 |
US7790833(B2) |
申请公布日期 |
2010.09.07 |
申请号 |
US20080277644 |
申请日期 |
2008.11.25 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
DICOSIMO ROBERT;DRYSDALE NEVILLE EVERTON;SUNKARA HARI BABU |
分类号 |
C08G64/00;C08G63/02 |
主分类号 |
C08G64/00 |
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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