Metallocene-catalyzed olefin polymerization in the absence of al

Details Metallocene-catalyzed olefin polymerization in the absence of al Metallocene-catalyzed olefin polymerization in the absence of al

1995-05-25

2000-09-19

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5261241, 5261242, 526129, 526156, 526132, 526133, 526160, 526943, C08F 444

Patent

active

061213942

ABSTRACT:
The present invention is directed to a method for polymerizing an .alpha.-olefin characterized by using a catalyst system which is obtained by reacting a halogenated metallocene compound with an organometallic compound, and then bringing the resultant reaction product into contact with a compound which will be a stable anion by reaction with the reaction product of the halogenated metallocene compound and the organometallic compound.
When the method of the present invention is carried out, a polyolefin can be obtained by the use of the inexpensive catalyst in a high activity per unit amount of the catalyst.

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