发明名称 |
Method for removing volatile components from polymer compositions |
摘要 |
Method for continuously removing the unreacted butene-1, and optionally other volatile components, from a polymeric solution obtained by liquid phase (co)polymerization of butene-1, the method comprising the steps of: subjecting the polymeric solution to heating and mixing conditions such that a mixture is formed consisting substantially of: (1) a polybutene melt containing entrapped butene-1 and (2) supercritical gaseous butene-1; subjecting the above mixture to a sequence of devolatilization steps operating at decreasing pressures.
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申请公布号 |
US7199163(B2) |
申请公布日期 |
2007.04.03 |
申请号 |
US20040518693 |
申请日期 |
2004.12.16 |
申请人 |
BASELL POLIOLEFINE ITALIA S.P.A. |
发明人 |
BIGIAVI DANIELE;ARICH DE FINETTI NICOLO;MEI GABRIELE;PENZO GUISEPPE;COVEZZI MASSIMO;BAITA PIETRO;TONTI MARIA SILVIA |
分类号 |
C08F6/06;C08G6/00;C08F6/00;C08F6/10 |
主分类号 |
C08F6/06 |
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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