Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1982-11-24
1984-03-06
Garvin, Patrick
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502120, 502132, 502133, 502118, 526119, C08F 468
Patent
active
044355203
ABSTRACT:
Vanadium compound/organometallic compound/inorganic oxide catalyst compositions useful for the polymerization of ethylene to polymers having an intermediate molecular weight distribution that can be predictably controlled by the use of a "tunable" variable are obtained by using, as the vanadium component, a mixture of about 10-90 mol percent of VOCl.sub.3 and, correspondingly, about 90-10 mol percent of VCl.sub.4. The molecular weight distributions of polymers formed in the presence of the catalyst compositions are narrowed as the proportionation of VCl.sub.4 in the vanadium component is increased.
REFERENCES:
patent: 3591656 (1971-07-01), Kroll
patent: 4148754 (1979-04-01), Strobel et al.
patent: 4263171 (1981-04-01), Shida et al.
patent: 4333851 (1982-06-01), Speakman et al.
Cities Service Co.
Garvin Patrick
Hogan Patricia J.
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