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. 09, 1982
Filed:
Dec. 11, 1979
Applicant:
Inventors:
Assignee:
Mitsubishi Petrochemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526125 ; 2524 / ; 526122 ; 526348 ; 5263486 ; 526351 ; 526906 ;
Abstract
This invention relates to a process for producing an .alpha.-olefin polymer having a high stereoregularity in a high yield by polymerizing .alpha.-olefin in the presence of a catalyst composed of solid catalyst component (I) prepared by contacting (A) magnesium halide, (B) aromatic carboxylic acid ester, (C) halogen compound of titanium, and (D) siloxyaluminum compound with each other, and (II) an organometallic compound of a metal of Group I to III in the Periodic Table.