Catalysts, method of preparing these catalysts, and polymerizati

Details Catalysts, method of preparing these catalysts, and polymerizati Catalysts, method of preparing these catalysts, and polymerizati

1993-08-09

1995-04-18

Dees, Jose G.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502103, 502117, 502152, 556 7, 556 8, 556 53, 526117, 526120, 526126, 526131, C08F 416, C08F 1000

Patent

active

054078849

ABSTRACT:
An ionic catalyst useful for the polymerization of olefins, diolefins and/or acetylenically unsaturated monomers is described. The catalyst comprises cyclopentadienyl derivatives of Group IV-B metals as cation and a compatible non-coordinating anion containing a plurality of boron atoms. Borate, carborate, borane, carborane, metallaborane and metallacarborane compounds exemplify anion sources and dihydrocarbyl-substituted bis(cyclopentadienyl) zirconium compounds exemplify the Group IV-B metal cation sources. Utility is illustrated for olefin polymerization.

REFERENCES:
patent: 5064802 (1991-11-01), Stevens et al.
patent: 5162466 (1992-11-01), Karol et al.
patent: 5198401 (1993-03-01), Turner et al.
patent: 5214173 (1993-05-01), Jordan et al.
patent: 5278119 (1994-01-01), Turner et al.

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