Multi-donor catalyst system for the polymerization of olefins

Details Multi-donor catalyst system for the polymerization of olefins Multi-donor catalyst system for the polymerization of olefins

2007-02-27

2007-02-27

Lu, Caixia (Department: 1713)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C526S124800

Reexamination Certificate

active

10835337

ABSTRACT:
The present invention provides catalyst systems including a Ziegler-Natta or Ziegler-Natta-type catalyst in combination with a mixture of certain electron donors.

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Yao, Shigeru et al, “Theoretical consideration of the external donor of heterogeneous Ziegler-Natta catalysts using molecular mechanics, molecular dynamics, and QSAR analysis”, Macromolecular Theory and Simulations, 2001, pp. 850-854 10(9).
Inventors: Ikeuchi et al., entitled “Study on Aminosilane Compounds as External Electron Donors in Isospecific Propylene Polymerization” Journal of Molecular Catalysis A: Chemical, Elsevier, Amsterdam, NL, vol. 193, No. 1/2, 2003, pp. 207-215.

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