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公开(公告)号:US07323526B2
公开(公告)日:2008-01-29
申请号:US11192935
申请日:2005-07-29
CPC分类号: C08F10/00 , C08F4/65912 , C08F4/65925 , Y02P20/582 , Y10S526/941 , Y10S526/943 , C08F4/65916
摘要: A supported catalyst composition having improved flow properties is disclosed comprising an alkylalumoxane, a metallocene-alkyl an inorganic oxide support having an average particle size of from 0.1 to 50 μm and calcined at a temperature greater than 600° C., and optionally an antifoulant agent and. In one embodiment, the metallocene-alkyl is a Group 4, 5 or 6 metallocene-alkyl, and in another embodiment is a hafnocene-alkyl. Also disclosed is a method of polymerization using such a supported catalyst composition.
摘要翻译: 公开了具有改进的流动性质的负载型催化剂组合物,其包含烷基铝氧烷,茂金属 - 烷基和平均粒度为0.1-50μm的无机氧化物载体,并且在大于600℃的温度下煅烧,以及任选的防污剂 和。 在一个实施方案中,茂金属 - 烷基是第4,5或6族茂金属 - 烷基,在另一个实施方案中是茂金属 - 烷基。 还公开了使用这种负载型催化剂组合物的聚合方法。