C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/105, 402/434
C08F 10/00 (2006.01) C08F 4/64 (2006.01)
Patent
CA 1219250
A B S T R A C T In a process for producing olefin polymers or copolymers which comprises polymerizing olefins or co- polymerizing olefins with each other or with dienes in the presence of [A] a solid titanium catalyst component containing magnesium, titanium and halogen as essential ingredients and [B] an organometallic compound of a metal selected from the group consisting of metals of Groups I to III of the periodic table; the improvement wherein said catalyst component [A] is obtained by contacting (i) a magnesium compound in the liquid state with (ii) a titanium compound in the liquid state to form a solid product or first preparing a liquid mixture of the magnesium compound (i) and the titnaium compound (ii) and then forming a solid product therefrom, said reaction of forming the solid product being carried out in the presence of at least one electron donor (iii) selected from the group consisting of aliphatic carboxylic acids with 1 to 6 carbon atoms, aryloxy group-containing alcohols alkylene glycol diethers, aluminum trialkoxides and aluminum triaryloxides said solid product being not contacted, during or after its formation, with an ester selected from the group consisting of esters of poly- carboxylic acids and esters of polyhydroxy compounds.
443996
Kashiwa Norio
Kioka Mamoru
Mitsui Chemicals Inc.
Smart & Biggar
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