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    • 4. 发明授权
    • Process for preparing polyolefins
    • 聚烯烃的制备方法
    • US4088812A
    • 1978-05-09
    • US752003
    • 1976-12-20
    • Kazuo MatuuraMasaomi MatsuzakiHumiaki OshimiNobuyuki KurodaMituji Miyoshi
    • Kazuo MatuuraMasaomi MatsuzakiHumiaki OshimiNobuyuki KurodaMituji Miyoshi
    • C08F4/02C08F4/62C08F10/00C08F10/02
    • C08F10/00
    • This invention discloses an improved catalyst for the polymerization or copolymerization of olefins, and a process for preparing polyolefins which comprises polymerizing or copolymerizing olefins using the said catalyst. According to the invention there is provided a process for preparing polyolefins by polymerizing or copolymerizing olefins using as a catalyst at least one compound selected from the group consisting of a titanium compound and a vanadium compound supported on a solid carrier, and an organometallic compound, said solid carrier comprising a product obtained by treatment with SO.sub.3 of at least one member selected from the group consisting of an oxide of Group II-IV metals of the Periodic Table and a double oxide of the said oxide and other oxide, which other oxide may be another oxide of Group II-IV metals of the Periodic Table or may be an oxide of other Group metals of the same Table.
    • 本发明公开了一种用于烯烃聚合或共聚的改进催化剂,以及一种制备聚烯烃的方法,该方法包括使用所述催化剂聚合或共聚烯烃。 根据本发明,提供了一种通过使用至少一种选自负载在固体载体上的钛化合物和钒化合物和有机金属化合物的化合物作为催化剂聚合或共聚烯烃的方法,所述方法 固体载体,其包含通过用SO 3处理由选自元素周期表中的II-IV族金属的氧化物和所述氧化物和其它氧化物的二氧化物中的至少一种获得的产物,其它氧化物可以是 元素周期表第II-Ⅳ族金属的另一种氧化物,或者可以是同一表中其他族金属的氧化物。