Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1988-05-31
1989-10-24
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...
502104, 502115, 502120, 502126, 502132, 502112, 526129, C08P 464
Patent
active
048762296
ABSTRACT:
An olefin, particularly alpha-olefin, supported catalyst composition, containing a transition metal or a compound thereof and an activator, has an average pore diameter of about 20 to about 300 Angstroms, at a substantially constant catalyst particle size for a given range of average pore diameters. The catalyst produces polymers having gradually decreasing molecular weight distribution with decreasing pore size of the catalyst at a constant particle size.
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McDaniel, Fracturing Silica-Based Catalysts During Ethylene Polymerization, Journal of Polymer Science: Polymer Chemistry Edition, vol. 19, 1967-1976 (1981).
Shida et al., A Study of Supported Magnesium Titanium Catalysts, Polymer Preprints (ACS Division of Polymer Chemistry) 24, 1, pp. 110-111 (1983).
Hogan et al., Phillips Petroleum Company Loop Reactor Polyethylene Technology, Journal of Applied Polymer Science: Applied Polymer Symposium, 36, 49-60 (1981).
Aksman Stanislaus
Garvin Patrick P.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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