专利内容由知识产权出版社提供
专利名称：Method for preparing a supported
metallocene-alumoxane catalyst for gasphase polymerization
发明人：Chang, Main申请号：EP88311633.7申请日：19881208公开号：EP0323716A1公开日：190712
摘要：This invention relates to a process for preparing a supported metallocenealumoxane catalyst for use in the gas phase polymerization of olefins. The inventionparticularly relates to the use of silica gel containing from about 6 to about 10 percentby weight adsorbed water as the catalyst support material. It has been found that suchsilica gel may be safely added to an aluminum trialkyl solution to form by direct reactionwith the adsorbed water content of the silica gel catalyst support material the
alumoxane component of the catalyst system. An alumoxane coated silica gel is formedto which a metallocene may be added and the resulting material dried to free flowingpowder. The dry free flowing powder may then be used as a supported metallocenealumoxane catalyst complex for gas phase polymerization of olefins.
申请人：EXXON CHEMICAL PATENTS INC.
地址：200 Park Avenue Florham Park New Jersey 07932 US
国籍：US
代理机构：Veldhuizen, Albert Dirk Willem
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