Titanium trichloride catalytic component and method for homo- or

Details Titanium trichloride catalytic component and method for homo- or Titanium trichloride catalytic component and method for homo- or

1979-06-19

1981-02-17

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526142, 526144, C08F 464

Patent

active

042513880

ABSTRACT:
A titanium trichloride catalytic component obtained by separating it out of a solution consisting of titanium tetrachloride, an organic ether compound and an organo-aluminum compound dissolved in a solvent. The solvent is a mixture consisting of a saturated aliphatic hydrocarbon and/or an alicyclic hydrocarbon with 20 to 70% by volume of a concomitant aromatic hydrocarbon halide included therein. The organo-aluminum compound, the titanium tetrachloride and the organic ether compound is added to this mixed solvent at a solvent temperature not exceeding 55.degree. C. Following this, the solvent temperature is raised up to a value between 45.degree. and 150.degree. C. over a period of 10 minutes to 24 hours with an organic ether compound and/or titanium tetrachloride further added during this temperature raising process to obtain thereby a titanium trichloride catalytic component having average particle diameter between 10 and 1000.mu. . Then homo- or co-polymerization of .alpha.-olefin is carried out by using a catalyst system comprising this catalytic component and an organo-aluminum compound.

REFERENCES:
patent: 3094568 (1963-06-01), Hay et al.
patent: 3825524 (1974-07-01), Wada et al.
patent: 4060593 (1977-11-01), Kazuo et al.
patent: 4085064 (1978-04-01), Wristers
patent: 4123387 (1978-10-01), Shiga et al.
patent: 4127504 (1978-11-01), Ueno et al.
patent: 4127505 (1978-11-01), Ueno et al.
patent: 4136243 (1979-01-01), Appleyard et al.

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