Process for producing olefin polymers or copolymers and catalyst

Details Process for producing olefin polymers or copolymers and catalyst Process for producing olefin polymers or copolymers and catalyst

1980-02-04

1983-09-13

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 526124, 526351, 526905, 526906, C08F 464, C08F 1004

Patent

active

044043414

ABSTRACT:
In a process for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such an alpha-olefin with up to 20 mole % of ethylene and/or a diene in the presence of a catalyst comprising (1) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester and (2) an organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table; the improvement wherein said catalyst is composed of (A) the solid titanium catalyst component (1) in which the molar ratio of the phosphorus to the carboxylic acid ester is from about 0.05 to about 2 and which has a specific surface area of not less than about 40 m.sup.2 /g, (B) the organometallic compound (2), and (C) an electron donor; and a catalyst used for aforesaid process.

REFERENCES:
patent: 4069169 (1978-01-01), Toyoda et al.
patent: 4130503 (1978-12-01), Fodor
patent: 4180636 (1979-12-01), Hirota et al.
patent: 4187196 (1980-02-01), Giannini et al.
patent: 4229558 (1980-10-01), Kakogawa et al.

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