Polymerization using mixed aluminum compounds

Details Polymerization using mixed aluminum compounds Polymerization using mixed aluminum compounds

1981-12-15

1983-06-07

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 82, 5263482, 5263486, C08F 430

Patent

active

043872026

ABSTRACT:
A process is described for the polymerization of ethylene or copolymerization of ethylene with a C.sub.3 to C.sub.15 alpha olefin in solution, suspension or in the gas phase at 20.degree. to 250.degree. C. and 1 to 100 bars in the presence of a mixed catalyst comprising a separately produced halogen-containing titanium(III) compound and an organoaluminum compound while controlling the molecular weight with oxygen, wherein a mixture of organoaluminum compounds is employed comprising a halogen-containing aluminum alkyl and a trialkyl aluminum compound in a molar ratio of 1:0.05 to 1:20, the combined amount of organoaluminum compounds being present in an amount of 0.01 to 20 moles per one mole of halogen-containing Ti(III) compound.

REFERENCES:
patent: 2822357 (1958-02-01), Brebner et al.
patent: 3108973 (1963-10-01), Vandenberg
patent: 3592880 (1971-07-01), Diedrich et al.
patent: 3773735 (1973-11-01), Diedrich et al.
patent: 4004071 (1977-01-01), Aishima et al.
patent: 4048419 (1977-09-01), Frese et al.
patent: 4059720 (1977-11-01), Kolling et al.

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