Catalyst composition for the copolymerization of propylene

Catalyst composition for the copolymerization of propylene

  • CN 101,472,963 A
  • Filed: 06/21/2007
  • Published: 07/01/2009
  • Est. Priority Date: 06/21/2006
  • Status: Active Application
First Claim
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1. the production method of propylene copolymer, described method are included in and make propylene and one or more comonomer step of polymerization in one or more polymerization reactors in the presence of following materials:

  • (a) comprise titanium compound with at least one titanium-halogen key and as the diether compounds of interior electron donor(ED) and the blend of succinate compound, described titanium compound and described blend all load on the magnesium halide with activity form,(b) organo-aluminium compound, preferred trialkylaluminium, more preferably triethyl aluminum and(c) Ren Xuan external donor,This method feature is that the weight ratio of diether compounds and succinate compound is 0.01~

    100, is preferably 0.02~

    10, even more preferably 0.05~

    5, and most preferably be 0.1~

    1.5.

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