Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-09-04
2000-10-10
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
5261247, 526153, 526907, C08F 4649, C08F 458
Patent
active
061303011
ABSTRACT:
A method for producing a polyolefin, which comprises polymerizing or copolymerizing at least one olefin in the presence of a catalyst system comprising (A) a solid catalyst component of a titanium catalyst component obtained by reacting at least one aluminum halide compound with a homogeneous solution containing magnesium, titanium and alkoxy groups, wherein the aluminum halide compound is added to the homogeneous solution to provide a halogen atom in a mol ratio of from 0.2 to 0.4 to one mol of the alkoxy groups contained in the homogeneous solution to precipitate particles in the former step, and the aluminum halide compound is further added to provide a halogen atom in a mol ratio of from 1 to 20 to one mol of the alkoxy groups to treat the resultant mixture containing the precipitated particles in the latter step, and (B) at least one organic aluminum compound catalyst component.
REFERENCES:
patent: 3901863 (1975-08-01), Berger et al.
patent: 4105846 (1978-08-01), Hoff et al.
patent: 4525554 (1985-06-01), Tanaka et al.
patent: 4588704 (1986-05-01), Drake et al.
patent: 4617360 (1986-10-01), Bienfoit
patent: 4804726 (1989-02-01), Kondo et al.
patent: 5229476 (1993-07-01), Hara et al.
Mori Mitsuhiro
Naito Yutaka
Nishimura Sadaki
Takitani Hideyuki
Teskin Fred
Tosoh Corporation
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