Dual-site olefin polymerization catalyst composition

Details Dual-site olefin polymerization catalyst composition Dual-site olefin polymerization catalyst composition

2005-06-14

2005-06-14

Rabago, Roberto (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S114000, C526S118000, C526S119000, C526S129000, C526S172000, C526S210000, C502S103000, C502S117000, C502S120000, C502S129000, C502S168000, C502S152000, C502S155000, C502S156000

Reexamination Certificate

active

06906153

ABSTRACT:
The invention provides a catalyst system (preferably a heterogeneous catalyst system) comprising: a transition metal bisphenolate catalyst (preferably a group 4 to 6 transition metal bisphenolate catalyst) and another olefin polymerization catalyst, and optionally a co-catalyst, e.g. an organoaluminium compound or a boron compound.

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van der Linden et al, “Polymerizatin of α-Olefins and Butadiene and Catalystic Cyclotrimerization of 1-Alkynes by a New Class of Group IV Catalysts . . . ”, J. Am. Chem. Soc. 1995, 117, 3008-3021.

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