Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1983-11-15
1985-05-21
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
502121, 502125, 502131, 502133, 502134, 502129, 526114, 526115, 526121, 526122, 526124, 526125, 5263486, 526352, 526901, 526906, C08F 402, C08F 1000
Patent
active
045187525
ABSTRACT:
A process for the homopolymerization or copolymerization of olefins is disclosed, which is carried out in the presence of an improved catalyst comprising a solid catalyst component and an organometal compound, said solid catalyst component being obtained by the reaction of: (a) a magnesium halide, (b) a compound represented by the formula: Me(OR).sub.n X.sub.z-n where Me is any of the Group I-VIII elements of the Periodic Table, excluding Al, Si, Ti and V, R is a hydrocarbon residual group having 1-24 carbon atoms, X is a halogen atom, z represents the valence of Me and n is 0<n.ltoreq.z, and (c) a compound represented by the formula: Si(OR').sub.m X.sub.4-m where R' is a hydrocarbon residual group having 1-20 carbon atoms, X is a halogen atom, and m is 0.ltoreq.m.ltoreq.4, and (d) a titanium compound and/or a vanadium compound. The resulting polymers are characterized by a large bulk density, a narrow range of molecular weight distribution, and small amounts of hexane extraction.
REFERENCES:
patent: 3991260 (1976-11-01), Matsuura et al.
patent: 4202953 (1980-05-01), Matsuura et al.
patent: 4209601 (1980-06-01), Kuroda et al.
patent: 4209602 (1980-06-01), Kuroda et al.
patent: 4315999 (1982-02-01), Matsuura et al.
Kuroda Nobuyuki
Matsuura Kazuo
Nakamura Toru
Shikatani Yutaka
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Nippon Oil Co. Ltd.
Smith Edward J.
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