Process for producing propylene copolymers

Process for producing propylene copolymers

  • CN 101,395,188 A
  • Filed: 01/26/2007
  • Published: 03/25/2009
  • Est. Priority Date: 03/02/2006
  • Status: Active Application
First Claim
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1. be used to prepare the method for propylene copolymer, this method comprises propylene is contacted with catalyst system with at least a olefinic monomer, the alpha-olefin that this at least a olefinic monomer is selected from ethene and has 4-20 carbon atom, this catalyst system comprises (a) catalyst precursor and (b) activator, this catalyst precursor comprises organometallic compound, this activator comprises fluorinated aryl borate negative ion, and this negative ion is by formulaCt +[B-(Ar xR n)] -Expression, wherein Ct +Be positive ion, this positive ion can be captured alkyl or make the carbon-to-metal bond fracture of organometallic compound from organometallic compound;

  • Ar is the fluoro phenyl;

    R be fluoro naphthyl and x and n each naturally 1,2 or 3, condition is x+n=4.

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