发明名称 |
ACTIVATING SUPPORTS WITH CONTROLLED DISTRIBUTION OF OH GROUPS |
摘要 |
The present invention relates to a process for preparing an activating support for metallocene complexes in the polymerisation of olefins comprising the steps of:
I) providing a support consisting in particles formed from at least one porous mineral oxide;
II) optionally fixing the rate of silanols on the surface of the support;
III) functionalising the support with a solution containing a metallic salt;
IV) heating the functionalised support of step c) under an inert gas or hydrogen;
V) oxidising the support of step IV by treatment under N 2 O and then under oxygen;
VI) retrieving an active support having a controlled number of OH groups. That activating support is used to activate a metallocene catalyst component for the polymerisation of olefins. |
申请公布号 |
EP2427508(A1) |
申请公布日期 |
2012.03.14 |
申请号 |
EP20100715559 |
申请日期 |
2010.04.29 |
申请人 |
TOTAL PETROCHEMICALS RESEARCH FELUY;CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS |
发明人 |
PANNIER, GAELLE;BOISSON, CHRISTOPHE;SPITZ, ROGER |
分类号 |
C08F210/16;C08F4/02;C08F4/64;C08F10/00 |
主分类号 |
C08F210/16 |
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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