Process for producing polymers or copolymers of olefins containi

Details Process for producing polymers or copolymers of olefins containi Process for producing polymers or copolymers of olefins containi

1977-05-27

1980-11-04

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, 526141, 526142, 526143, 526351, C08F 402, C08F 1006

Patent

active

042321395

ABSTRACT:
A process for producing a polymer or copolymer of an olefin containing at least 3 carbon atoms which comprises polymerizing or copolymerizing at least one olefin containing at least 3 carbon atoms, or copolymerizing the olefin with up to 10% mole of ethylene and/or a diolefin, in the presence of a catalyst composed of (A) a magnesium-containing solid titanium composition and (B) an organometallic compound of a metal of Groups I to III of the periodic table; characterized in that the solid titanium composition (A) is a composition formed by contacting (i) a halogen-containing magnesium organo-aromatic compound of the formula Mg(OR).sub.n X.sub.2-n wherein R represents an aryl or aralkyl group and n is a positive number of 0<n<2, (ii) an organic acid ester, and (iii) a titanium compound in the absence of mechanical pulverization.

REFERENCES:
patent: 4069169 (1978-01-01), Toyota et al.
patent: 4085276 (1978-04-01), Toyota et al.
patent: 4107414 (1978-08-01), Giannini et al.
patent: 4107416 (1978-08-01), Giannini et al.
patent: 4115319 (1978-09-01), Scata et al.
patent: 4143223 (1979-03-01), Toyota et al.

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