Olefin polymerization catalyst

Details Olefin polymerization catalyst Olefin polymerization catalyst

2008-05-27

2008-05-27

Lu, Caixia (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C502S162000

Reexamination Certificate

active

07378474

ABSTRACT:
The present invention provides an olefin polymerization catalyst composed of a late transition metal complex exhibiting high olefin polymerization activity and also provides a method for producing the same. Furthermore, the present invention provides an olefin polymer prepared using the catalyst and a method for producing the olefin polymer. The olefin polymerization catalyst is composed of a fluorine-containing late transition metal complex having a structure represented by a specified general formula. The polymerization catalyst can be prepared in the reaction system.

REFERENCES:
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patent: 2923206 (1980-12-01), None
patent: WO 02/024763 (2002-03-01), None
Joachim Heinicke, et al, “2-Phosphanylphenolate Nickel Catalysts for the Polymerization of Ethylene”, Chemistry-A European Journal, vol. 9, No. 24, 2003, pp. 6093-6107.
Wilhelm Keim, et al, “Reactions of Chelate Ylides With Nickel (0) Complexes”, Organometallics, vol. 5, No. 11, 1986, pp. 2356-2359.
Bauers, et al., “Catalytic Polymerization of Ethylene in Aqueous Emulsion with a Simple in Situ Catalyst,”Macromolecules36:6711-6715 (2003).
Soula, et al., “Very Active Neutral P,O-Chelated Nickel Catalysts for Ethylene Polymerization,”Macromolecules34:2438-2442 (2001).
Soula, et al., “Catalytic Polymerization of Ethylene in Emulsion,”Macromolecules34:2022-2026 (2001).

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