Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1982-05-04
1985-03-26
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
502125, 502119, 526128, 5263486, 526352, 526901, 526906, C08F 402, C08F 1000
Patent
active
045074488
ABSTRACT:
A process for the homopolymerization or copolymerization of olefins is disclosed, which is carried out in the presence of a catalyst system comprising the combination of at least one organometallic compound with a component resulting from the reaction of (a) a magnesium halide, (b) a compound represented by the formula, Al(OR).sub.n X.sub.3-n, where R is a hydrocarbon residual group having 1 to 20 carbon atoms, X is a hydrogen atom, and n is 0.ltoreq.n.ltoreq.3, (c) a compound represented by the formula, Si(OR').sub.m X.sub.4-m, where R' is a hydrocarbon residual group having 1 to 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 have a large bulk density and a narrow range of molecular weight distribution.
REFERENCES:
patent: 4172050 (1979-10-01), Gessell
patent: 4209602 (1980-06-01), Kuroda et al.
Kuroda Nobuyuki
Matsuura Kazuo
Miyoshi Mitsuji
Nakamura Toru
Shikatani Yutaka
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Nippon Oil Co. Ltd.
Smith Edward J.
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