The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 1981
Filed:
Jun. 19, 1979
Toyo Stauffer Chemical Co., Ltd., Tokyo, JP;
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.