Stereospecific catalyst system intended for the polymerization o

Details Stereospecific catalyst system intended for the polymerization o Stereospecific catalyst system intended for the polymerization o

1991-12-17

1993-07-13

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...

502127, 526125, 526128, C08F 4649

Patent

active

052273555

ABSTRACT:
A good activity and stereospecifity have been achieved by a catalyst system intended for the polymerization of olefins comprising a procatalyst based on a titanium compound, an organoaluminium cocatalyst and an organosilane compound, the organosilane compound having the following formula (I) ##STR1## in which R is a lower alkyl, R' is an alkyl, R" is a substituent donating electrons, n=1, 2, or 3, m=0, 1, or 2, and n+m.ltoreq.3.

REFERENCES:
patent: 4980327 (1990-12-01), Barbe et al.
patent: 4990477 (1991-02-01), Kioka et al.
patent: 5015612 (1991-05-01), Kioka et al.
Makromolekulare Chemie., vol. 192, Dec. 1991, Basel CH pp. 2857-2863.

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