发明名称 |
PROCESSO PARA A PREPARACAO DE UM COMPONENTE DE CATALISADOR ESFERICO |
摘要 |
The invention relates to a process for the preparation of a spherical catalyst component based on magnesium chloride for the polymerisation of olefins, which has high stability to mechanical stress during the polymerisation, so that considerable simplifications and advantages are achieved in the handling and processing of the polymeric products produced therewith. This is achieved by coating a specific component with a thin protective layer of polyethylene by prepolymerisation before the actual polymerisation. |
申请公布号 |
BR9301328(A) |
申请公布日期 |
1993.10.05 |
申请号 |
BR19939301328 |
申请日期 |
1993.03.26 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
DR. GERHARD THUM |
分类号 |
C08F4/60;C08F4/654;C08F10/00 |
主分类号 |
C08F4/60 |
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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