Catalyst compositions and process for preparing polyolefins

Details Catalyst compositions and process for preparing polyolefins Catalyst compositions and process for preparing polyolefins

1995-08-10

1998-02-03

Wood, Elizabeth D.

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

Catalyst or precursor therefor

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

502103, 502152, 502158, 556 52, 556 53, 556 56, 526160, 526943, 987 2, B01J 3100, C07F 728, C07F 1700, C07F 1702

Patent

active

057144257

ABSTRACT:
Catalyst compositions comprising metallocene complexes having polymerisable olefinic groups substituent on an organic group containing a cyclopentadienyl nucleus may be used for the preparation of polyolefins. The catalyst compositions may be in the form of polymers comprising the metallocene complex and may be suitably supported on inorganic supports. Polymers having a broad range of density and melt indices as well as low hexane extractables and excellent powder morphology and flowability may be obtained by use of the catalyst compositions. Preferred metallocene complexes are zirconium complexes in which the polymerisable olefinic group is vinyl.

REFERENCES:
patent: 4363904 (1982-12-01), Fraser
patent: 5145819 (1992-09-01), Winter et al.
patent: 5308817 (1994-05-01), Reddy et al.
patent: 5374752 (1994-12-01), Winter et al.
patent: 5455365 (1995-10-01), Winter et al.

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