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:
Jul. 04, 1978
Filed:
Dec. 09, 1976
Applicant:
Inventors:
Shoichi Tokunaga, Shinnanyo, JP;
Atsumi Kato, Hikari, JP;
Yoshikazu Takahashi, Hikari, JP;
Kiyoshi Yamane, Hohu, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526116 ; 2524 / ; 2524 / ; 526119 ; 526122 ; 526127 ; 526142 ; 526158 ; 526351 ; 526906 ;
Abstract
A method of preparing reformed titanium trichloride catalyst for .alpha.-olefin polymerization which comprises simultaneously pulverizing an organoaluminum compound and a crystalline titanium trichloride compound, the latter comprising titanium trichloride and aluminum trichloride, subsequently treating the pulverized mixture with a solvent selected from oxygen-containing organic compounds, and finally treating the thus treated titanium trichloride with a halide of a metal selected from the groups IV and V of the periodic table.