发明名称 |
PROCESS FOR THE PRODUCTION OF PROPYLENE COPOLYMERS USING A PREPOLYMERISED CATALYST |
摘要 |
<p>The present invention relates to a process for the production of propylene copolymers wherein in a first step an olefin polymerisation catalyst comprising a solid catalyst component is subjected to a prepolymerisation reaction in a prepolymerisation reactor, in which propylene monomers are present in an amount of 98.0 to 99.9 mol% and further alpha-olefin monomers other than propylene are present in an amount of 0.1 to 2.0 mol%, based on the combined amount of propylene and further alpha- olefin monomers, so that a prepolymer is produced on the catalyst in an amount of 10 to 1000 g per g of the solid catalyst component, and in a second, subsequent step propylene and further alpha-olefin monomers other than propylene are copolymerised in the presence of the prepolymerised catalyst produced in the first step so that a propylene copolymer is obtained which contains at least 0.1 mol% of alpha-olefin units other than propylene, to propylene copolymers obtainable by such a process and to the use of a prepolymerised catalyst in such a process.</p> |
申请公布号 |
WO2008151794(A1) |
申请公布日期 |
2008.12.18 |
申请号 |
WO2008EP04687 |
申请日期 |
2008.06.11 |
申请人 |
BOREALIS TECHNOLOGY OY;LESKINEN, PAULI;TUOMINEN, OLLI |
发明人 |
LESKINEN, PAULI;TUOMINEN, OLLI |
分类号 |
C08F210/06;C08F210/16 |
主分类号 |
C08F210/06 |
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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