发明名称 |
Bulk density promoting agents in a gas-phase polymerization process to achieve a bulk particle density |
摘要 |
Disclosed herein is a gas phase polymerization process including the steps of passing a recycle stream through a fluidized bed in a gas phase fluidized bed reactor in the presence of a bulk density promoting agent, wherein the bulk density promoting agent is of a saturated hydrocarbon and/or a non-polymerizable unsaturated hydrocarbon having 6 or more carbon atoms; polymerizing at least one alpha-olefin monomer in the presence of a catalyst to produce an alpha-olefin polymer; and controlling an amount of the bulk density promoting agent in the reactor such that a bulk density of the alpha-olefin polymer discharged from the reactor is greater than or equal to about 480 kg/m3.
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申请公布号 |
US2009137756(A1) |
申请公布日期 |
2009.05.28 |
申请号 |
US20080291589 |
申请日期 |
2008.11.12 |
申请人 |
PEQUENO R ERIC;HAGERTY ROBERT O;SAVATSKY BRUCE J |
发明人 |
PEQUENO R. ERIC;HAGERTY ROBERT O.;SAVATSKY BRUCE J. |
分类号 |
C08F10/02;C08F10/06;C08F10/08;C08F10/14 |
主分类号 |
C08F10/02 |
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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