C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/109, 402/644
C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1218352
ABSTRACT OF THE DISCLOSURE A process for producing an .alpha.-olefin polymer which comprises polymerizing an .alpha.-olefin in the presence of a catalyst system comprising (A) a solid catalyst component obtained by steps of i) reducing titanium tetrachloride with an organo- aluminum compound represented by the general formula R1nA?Y3-n, wherein R1 represents a C1-C18 hydrocarbon group, Y represents a halogen, and n represents a number satisfy- ing 1 < n < 3, ii) heating the reduction product at a temperature of up to 150°C, iii) treating the thus obtained solid product contain- ing .gamma.-titanium trichloride by preliminary polymerization of an .alpha.-olefin in the presence thereof, and iv) reacting the resulting solid product with a halogen represented by the general formula X2, wherein X represents C?, Br, or I, and/or an interhalogen compound represented by the general formula X'X"a, wherein X' and X" represent each C?, Br, or I and a represents 1 or 3, and with an ether compound represented by the general formula R2-O-R3, wherein R2 and R3 are the same or different and represent each a C1-C10 alkyl group, in a hydrocarbon solvent at a temperature of 50° to 100°C, and (B) an organoaluminum compound.
458499
Kojima Junpei
Nunose Akira
Sasaki Toshio
Shiga Akinobu
Marks & Clerk
Sumitomo Chemical Co. Ltd.
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