发明名称 |
BATCH PROCESS FOR SYNTHESIS OF POLYMERS COMPRISING PENDANT CYCLOALKENE GROUPS |
摘要 |
Herein is disclosed a method for the batch transesterification of a polymer, comprising: (i) providing the polymer as a melt feed or in solution; (ii) reacting the polymer in a batch reactor with a first alcohol in the presence of a catalyst under conditions wherein transesterification occurs, to form the transesterified polymer and a second alcohol; (iii) removing the second alcohol from the transesterified polymer; (iv) stripping residual first alcohol and byproducts from the transesterified polymer, to yield purified transesterified polymer; and (v) pelletizing the purified transesterified polymer. This method is operable at a low temperature and with low levels of catalyst. It also is capable of relatively high conversion of acrylic units in the polymer. |
申请公布号 |
WO0228918(A2) |
申请公布日期 |
2002.04.11 |
申请号 |
WO2001US28565 |
申请日期 |
2001.09.11 |
申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP |
发明人 |
CAI, GANGFENG;CHING, TA, YEN;YANG, HU |
分类号 |
C08F8/14 |
主分类号 |
C08F8/14 |
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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