Ethylenic polymerization catalyst

Details Ethylenic polymerization catalyst Ethylenic polymerization catalyst

1996-09-13

1998-03-03

Wu, David W.

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

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502117, 502152, 502155, 526114, 526115, 526118, 526119, 526943, C08F 422

Patent

active

057233993

ABSTRACT:
An ethylenic polymerization catalyst comprising (A) a chromium compound, (B) a carrier, (C) aluminoxane, and (D) a transition metal compound comprising a group having conjugated .pi. electron as a ligand, wherein said chromium compound (A) is not calcined; and a process for producing an ethylenic polymer comprising a step of polymerizing a monomer comprising ethylene in the presence of the ethylenic polymerization catalyst.

REFERENCES:
patent: 4701432 (1987-10-01), Welborn, Jr.
patent: 4937299 (1990-06-01), Ewen et al.
patent: 5393720 (1995-02-01), Carney et al.
patent: 5593931 (1997-01-01), Beach et al.

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