Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1983-10-24
1985-07-02
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502121, 502122, 502123, 502124, 502125, 502126, 502127, 526124, 526125, C08F 464
Patent
active
045268827
ABSTRACT:
A comminuted, supported polymerization catalyst for alpha-olefins comprises (A) an organoaluminum compound and (B) a solid titanium-containing component formed by at least one halogen-containing compound of titanium(IV); (b) at least one electron donor; and (c) at least one hydrocarbon-insoluble magnesium-containing compound; and (2) retreating such comminuted product with (a) at least one halogen-containing compound of titanium(IV); and (b) a mixture containing ethylbenzoate and a substituted alkyl aromatic acid ester in which the substituent group has a negative Hammett constant; and optionally, at least one chlorocarbon and/or at least one haloalkylchlorosilane.
REFERENCES:
patent: 4431570 (1984-02-01), Johnson
patent: 4431571 (1984-02-01), Karayannis
patent: 4431572 (1984-02-01), Karayannis et al.
Johnson Bryce V.
Karayannis Nicholas M.
Skryantz John S.
Garvin Patrick P.
Magidson William H.
McClain William T.
Oliver Wallace L.
Standard Oil Company (Indiana)
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