Process for the manufacture of a catalyst

C - Chemistry – Metallurgy – 08 – F

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252/100, 402/584

C08F 4/62 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1134342

Abstract of the Disclosure A catalyst for the polymerization of 1-olefins is pre- pared by reacting a chromate ester fixed on a carrier con- taining silicon dioxide, in the absence of an unsaturated polymerizable hydrocarbon, with an aluminum-organic com- pound and subsequently activating with aluminum-organic compound. No washing liquids that have to be worked up are obtained and the polymers obtained in a high yield have a broad molecular weight distribution and contain a small proportion of high molecular constituents only. The films made therefrom are practically free from specks.

320034

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