Mixed Ziegler and chromium catalyst and process for preparing a

Details Mixed Ziegler and chromium catalyst and process for preparing a Mixed Ziegler and chromium catalyst and process for preparing a

1989-08-14

1994-07-19

Smith, Edward J.

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

Catalyst or precursor therefor

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

526 97, 5263485, C08F 424, C08F 1002

Patent

active

053309502

ABSTRACT:
Ethylene polymers or copolymers having very broad molecular weight distributions in a broad range of melt-indicies are produced by using mixtures of MgO-supported Ziegler catalyst and a chromium oxide catalyst in which the usual poisoning of the catalysts does not occur.

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Ziegler-Natta Catalysts and Polymerizations, John Boor, Jr. (1979), p. 24.
Encyclopedia of Chemical Technology, vol. 14, pp. 631-633.

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