Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1985-12-06
1987-06-02
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...
502103, 502104, 502117, 502115, 502126, 502132, 526129, 526156, C08F 464
Patent
active
046704132
ABSTRACT:
A supported solid catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier with a transition metal compound. The carrier utilized in the synthesis must have such an average pore diameter that the resulting catalyst composition has an average pore diameter of at least about 170 Angstroms. The catalyst composition has higher productivity than similar catalyst compositions of lower average pore diameter, and it produces polymers of lower density and higher melt and high load melt indexes than such similar catalyst compositions of lower average pore diameter. Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention.
REFERENCES:
patent: 3591656 (1971-07-01), Kroll
patent: 4481301 (1984-11-01), Nowlin et al.
Shida et al, Polymer Preprints (ACS Div. Poly. Chem.), 24(1), pp. 110-111, Mar. 1983.
Hogan et al, Journal of Applied Polymer Science: Applied Polymer Symposium, 36, 49-60 (1981).
McDaniel, Journal of Polymer Science: Polymer Chemistry Edition, vol. 19, 1967-1976 (1981).
Aksman Stanislaus
Garvin Patrick P.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
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