C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/109, 23/161,
C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1142910
ABSTRACT OF THE DISCLOSURE: A titanium trichloride catalytic component and a method for homo- or co-polymerization of an .alpha.-olefin. In separating a titanium trichloride catalytic component from a solution prepared by dissolving titanium tetrachloride, an organic ether compound and an organo-aluminum compound in a solvent the above stated solvent is a mixed solvent prepared by allowing 20 - 70? by volume of an aromatic hydrocarbon halide to be concomitant with a saturated aliphatic hydrocarbon and/or an alicyclic hydrocarbon in the presence of an olefin the organo-aluminum compound. the titanium tetrachloride and the organic ether compound are added to the mixed solvent at a solvent temperature not exceeding 55°C; than, the solvent temperature is raised to a temperature between 45 and 150°C over a period between 10 minutes and 24 hours; and, during this temperature raising process, an organic ether compound and/or titanium tetra- chloride is further added to have a titanium trichloride cataytic component measuring 10 to 500µ in average particle diameter separated from the solvent. The titanium tri- chloride catalyic compound thus obtained is used in the homo- or co-polymerization of .alpha.-olefins. The invention aims at improvement in adjustment of the particle size, uniformly of the particle diameter and the strength of the titanium trichloride catalytic component and eventually at improvement in the particle shape and uniformity thereof of the polymer to be obtained by the use of the catalytic component.
354959
Sunada Yoichi
Takahashi Yoshikazu
Takitani Masaru
Borden Ladner Gervais Llp
Toyo Soda Manufacturing Co. Ltd.
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