Bridged metal complexes for gas phase polymerizations

Details Bridged metal complexes for gas phase polymerizations Bridged metal complexes for gas phase polymerizations

2005-05-10

2005-05-10

Wu, David W. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S172000, C526S161000, C526S943000, C526S348000

Reexamination Certificate

active

06891005

ABSTRACT:
A gas phase olefin polymerization wherein the catalyst comprises a novel Group 4 transition metal complex containing a boron or aluminum bridging group containing a nitrogen containing group, especially an amido group.

REFERENCES:
patent: 5399636 (1995-03-01), Alt et al.
patent: 514 828 (1992-05-01), None
patent: WO 9839369 (1998-09-01), None
Stelck et al. Organometallics 1997, 16,4546-4550.*
Herberhold, M. J. Organomet. Chem. 1997, 530, 117-120.

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