发明授权
- 专利标题: Vanadium based components and catalysts for the polymerization of olefins and polymerization processes using the same
- 专利标题(中): 用于烯烃聚合的钒基组分和催化剂以及使用其的聚合方法
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申请号: US936888申请日: 1997-09-25
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公开(公告)号: US5922632A公开(公告)日: 1999-07-13
- 发明人: Umberto Zucchini, deceased , Tiziano Dall'Occo , Antonella Angelini
- 申请人: Umberto Zucchini, deceased , Tiziano Dall'Occo , Antonella Angelini
- 申请人地址: NLX
- 专利权人: Montell Technology Company b.v.
- 当前专利权人: Montell Technology Company b.v.
- 当前专利权人地址: NLX
- 优先权: ITXMI92A1996 19920818
- 主分类号: C08F4/68
- IPC分类号: C08F4/68 ; C08F4/20 ; C08F4/60 ; C08F4/62 ; C08F10/00
摘要:
Catalysts component of the (co)polymerization of alpha-olefins CH.sub.2 .dbd.CHR, wherein R is hydrogen or an alkyl radical having from 1 to 8 carbon atoms, comprising a product of the composition:VCL.sub.y.z(b)wherein (b) represents an organic compound selected from alkyl, aryl and acyl halides, y is a number higher than 2 and lower than 4, and preferably comprised between 2.5 and 3.5 and z is a number higher than zero and lower than or equal to 2, and preferably between 0.002 and 1. Components can be obtained as products of the reaction, carried out at temperatures higher than 10.degree. C., between VCl.sub.4 and the compound (b). Particularly preferred among compounds (b) are benzoyl chloride, p-methoxybenzoyl chloride and p-chloro benzoyl chloride. From the components of the invention, either supported or not, catalysts having high activity particularly useful for the production of ethylene polymers showing broad molecular weight distribution can be prepared.
公开/授权文献
- US4850955A Body fluid transfer device 公开/授权日:1989-07-25