Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1977-03-01
1979-03-06
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, 252429C, 252431R, 526124, 526142, 526151, 526351, 526906, C08F 402, C08F 1006
Patent
active
041432231
ABSTRACT:
A process for polymerizing or copolymerizing .alpha.-olefins in the presence of a catalyst composed of (A) a mechanically pulverized solid titanium-containing catalyst component and (B) an organometallic compound of a metal of Groups I to III of the periodic table, wherein said titanium-containing component is a solid halogen-containing titanium catalyst component obtained by reacting a mechanically copulverized solid product in the absence of mechanical pulverization with a titanium compound which is liquid under the reaction conditions, said mechanically copulverized product being derived from (1) a magnesium compound, (2) an organic acid ester, and (3) an active hydrogen-containing compound selected from the group of alcohols and phenols; and a catalyst composition used therefor.
REFERENCES:
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 4069169 (1978-01-01), Toyoda et al.
patent: 4076924 (1978-02-01), Toyota et al.
patent: 4085276 (1978-04-01), Toyota et al.
Kashiwa Norio
Minami Syuji
Toyota Akinori
Mitsui Petrochemical Industries Ltd.
Smith Edward J.
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