Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1995-09-06
1998-07-14
Smith, Edward J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502111, 502121, 502122, 502124, 502125, 502126, 5261253, 5261256, 526119, 526351, 526904, C08F 4651, C08F 4654, C08F 1000
Patent
active
057803781
ABSTRACT:
A solid titanium catalyst component comprising (a) magnesium, (b) titanium, (c) a halogen, (d) a polyether, (e) a hydrocarbon and (f) an electron donor other than the polyether (d) as essential components is provided. Also a process for preparing a solid titanium catalyst component for olefin polymerization, comprising the steps of contacting a halogenated magnesium compound with a compound selected from the group consisting of an alcohol, an ether and an ester in a hydrocarbon solvent to obtain a magnesium compound solution, contacting the magnesium compound solution with a polyether and contacting the resultant solution with a liquid titanium compound is provided. Further, a catalyst for olefin polymerization comprising the above-mentioned solid titanium catalyst component, an organoaluminum compound catalyst component and an electron donor, and a process for polymerizing an olefin using the catalyst for olefin polymerization are also disclosed. By the use of the catalyst for olefin polymerization, an olefin (co)polymer having uniform particle size, less dust quantity, high bulk density and high stereoregularity can be obtained with excellent polymerization activity.
REFERENCES:
patent: 4290915 (1981-09-01), Toyota et al.
Makromol. Chem. Rapid Commun. vol. 14, No. 2, Feb. 1993, BASEL pp. 133-137 XP334499 Eero Iiskola `A novel MgC12-supported Zeigler-Natta catalyst . . . `.
Database WPI Derwent Publications Ltd., London, GB; AN 92-312538 `Catalyst system . . . ` & JPA 4218507 (Mitsui Petrochemical Industries) 10 Aug. 1992.
Kioka Mamoru
Shinozaki Tetsunori
Toida Tetsuya
Mitsui Petrochemical Industries Ltd.
Smith Edward J.
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