Produce the method and the catalyzer of syndiotactic polyolefins

Produce the method and the catalyzer of syndiotactic polyolefins

  • CN 1,040,036 A
  • Filed: 06/26/1989
  • Published: 02/28/1990
  • Est. Priority Date: 07/15/1988
  • Status: Abandoned Application
First Claim
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1. , a kind of metalloscene catalyst that is used to prepare syndiotactic polyolefins, described catalyzer is explained by following formula:

  • R, and " (Cp Rn) (the Me Qk of CpR '"'"' m) is characterized in that each Cp is the cyclopentadienyl rings of cyclopentadienyl or replacement in the formula;

    Each Rn is identical or different and for having the alkyl of 1-20 carbon atom;

    Each R '"'"' m is (for identical or different and for having the alkyl of 1-20 carbon atom;

    R " is two structure bridges of giving the catalyzer solid rigid between the Cp ring;

    Me is the metal of IVB, VB, group vib in the periodic table of elements;

    Each Q is for having 1-20) alkyl of carbon atom or be halogen;

    0≤

    k≤

    3;

    0≤

    n≤

    4;

    1≤

    m≤

    4;

    And R '"'"' m is selected from that (Cp R '"'"' is m) for being different from the ring of (Cp Rn) on the space in the formula.

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