发明名称 |
METHOD FOR POLYMERIZING POLYPROPYLENE |
摘要 |
The present disclosure relates to a method for polymerizing polypropylene, optionally with one or more additional comonomers in a gas phase reactor in the presence of a mixed electron donor system comprising at least one selectivity control agent and at least one activity limiting agent. The process involves controlling the polymerization process to ensure that the difference between the reactor temperature and the dew point temperature of the incoming monomer stream is 12°C or greater. |
申请公布号 |
EP2780379(B1) |
申请公布日期 |
2017.01.11 |
申请号 |
EP20110788729 |
申请日期 |
2011.11.15 |
申请人 |
W.R. Grace & CO. - CONN. |
发明人 |
VAN EGMOND, Jan W.;CAI, Ping |
分类号 |
C08F10/06;C08F2/34 |
主分类号 |
C08F10/06 |
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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