New carrier catalyst for the polymerization of ethylene

Details New carrier catalyst for the polymerization of ethylene New carrier catalyst for the polymerization of ethylene

1992-09-21

1994-06-28

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...

502120, 502115, 502121, 502125, 502127, 526125, 5263484, 526352, C08F 4654, C08F 4636, C08F 1000

Patent

active

053246985

ABSTRACT:
A problem in the conventional olefin polymerization catalyst systems, the procatalysts of which are based on a solid carrier and a titanium compound and an electron donor on its surface, is that unsufficiently high activities are achieved by the morphology of the carrier. Moreover, the active age of such a catalyst in the polymerization is too short. These problems have now been solved by the olefin polymerization catalyst system according to the invention, the procatalyst of which comprises a solid carrier and a layer on its surface consisting of a titanium compound, a magnesium compound and an electron donor. The advantages of the invention become more emphasized when using monocyclopentadienyl titaniumtrichloride as the titanium compound.

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Supinski, 111:79677t Manufacturer of Diene Rubbers in the Preparation of Syndiotactic Polystyrene.

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