Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1992-10-02
1993-08-31
Garvin, Patrick P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526132, 526133, 526134, 526156, 526160, 502103, 502108, 502117, C08F 4642
Patent
active
052410250
ABSTRACT:
This invention relates to catalyst systems, and a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers. This invention catalyst system comprises a Group III-A element compound for improving the productivity of an olefin polymerization catalyst which is the reaction product of a metallocene of a Group IV-B transition metal and an ionic activator compound comprising a cation capable of donating a proton which will irreversibly react with at least one ligand contained in the Group IV-B metal compound and an anion which is bulky, labile and noncoordinateable with the Group IV transition metal cation produced upon reaction of the metallocene and activator compound to form the catalyst component of the catalyst system.
REFERENCES:
patent: 5064802 (1991-11-01), Stevens et al.
patent: 5066741 (1991-11-01), Campbell
Hlatky Gregory G.
Turner Howard W.
Exxon Chemical Patents Inc.
Garvin Patrick P.
Kurtzman Myron B.
Spiering M. Susan
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