Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1992-05-18
1993-08-31
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502103, 502104, 502107, 502117, 526129, 526160, G08F 4642
Patent
active
052408949
ABSTRACT:
The invention relates to a novel process for producing a supported metallocene catalyst system useful for the polymerization and/or copolymerization of olefins, alpha-olefins, and/or diolefins which results in a catalyst product which during polymerization, produces minimal to no reactor fouling and polymer of controlled morphology. The invention is particularly useful for but not limited to polymerizing propylene or copolymerizing propylene with olefins having two or more carbon atoms. The novel support technique described herein results in a catalyst which will obtain polymer product having controlled, uniform particle size, narrow molecular weight distribution, high bulk density and depending upon the metallocene employed and monomers polymerized, stereoregularity.
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Kaminaka, et al. Polymer, 1105-07, v. 33, No. 5, (1992) (month not available).
Brandley William B.
Burkhardt Terry J.
Murata Masahide
Exxon Chemical Patents Inc.
Garvin Patrick P.
Kurtzman Myron B.
Spiering M. Susan
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