Process for the manufacture of a catalyst

Details Process for the manufacture of a catalyst Process for the manufacture of a catalyst

1979-09-12

1981-12-15

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252428, 252431R, 526114, C08F 464

Patent

active

043058418

ABSTRACT:
A catalyst for the polymerization of 1-olefins is prepared by successively applying a chromate ester and a titanium ester to a carrier containing silicon dioxide, in the absence of an unsaturated polymerizable hydrocarbon, and activating with an aluminum-organic compound. In the manufacture of the catalyst no washing liquids are obtained from which metal compounds would have to be separated. In the presence of hydrogen the catalyst gives a high yield of polymers with broad molecular weight distribution and a small content of high molecular constituents. The films made therefrom are practically free from specks.

REFERENCES:
patent: 3071601 (1963-01-01), Aries
patent: 3412174 (1968-11-01), Kroll
patent: 3622521 (1971-11-01), Hogan et al.
patent: 3752795 (1973-08-01), Boone
patent: 3773742 (1973-11-01), Kruse
patent: 3798250 (1974-03-01), Kruse
patent: 3879362 (1975-04-01), Chalfont et al.
patent: 4016343 (1977-04-01), Hoff et al.

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