Low aluminum and magnesium Z-N solution catalysts

Details Low aluminum and magnesium Z-N solution catalysts Low aluminum and magnesium Z-N solution catalysts

1999-01-27

2000-10-10

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5261247, 5261252, 5261257, 526148, 5263486, 526352, 502104, 502152, C08F 452

Patent

active

061303003

ABSTRACT:
The present invention provides a Ziegler-Natta catalyst useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention have a molar ratio of magnesium to the first aluminum component from 4.0:1 to 5.5:1 and molar ratio of magnesium to transition metal from 4.0:1 to 5.5:1.

REFERENCES:
patent: 4097659 (1978-06-01), Creemers et al.
patent: 4314912 (1982-02-01), Lowery, Jr. et al.
patent: 5519098 (1996-05-01), Brown et al.
patent: 5589555 (1996-12-01), Zboril et al.

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