Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1980-12-24
1983-04-12
Howard, Jacqueline V.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252429C, 526 88, 526125, C08F 464
Patent
active
043797580
ABSTRACT:
Catalyst compositions suitable for producing high density ethylene polymers in a low pressure gas phase process with low accompanying ethylene hydrogenation are produced by forming a precursor composition from a magnesium compound, titanium compound and electron donor compound; diluting said precursor composition with an inert carrier material; treating said diluted precursor composition with a boron halide compound; and activating the precursor composition with an organo aluminum compound.
REFERENCES:
patent: 4209601 (1980-06-01), Kuroda et al.
patent: 4239650 (1980-12-01), Franke et al.
World Patent Index Abstract 10955a/06.
George Kathleen F.
Goeke George L.
Karol Frederick J.
Wagner Burkhard E.
Howard Jacqueline V.
Piscitello John S.
Union Carbide Corporation
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