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:
Aug. 29, 1978
Filed:
Feb. 01, 1977
Applicant:
Inventors:
Stylianos Sandis, Lavera, FR;
Jean C Bailly, Martigues, FR;
Assignee:
Naphtachimie Societe Anonyme, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
2524 / ; 526142 ;
Abstract
A catalyst for use in the polymerization of olefins and a process for its manufacture wherein an excess titanium tetrachloride is reduced by an organoaluminum reducing agent, with the ratio of moles of titanium tetrachloride to the number of gram equivalents of the organoaluminum compound being at least 1.8. The catalyst is prepared in the presence of an aliphatic ether to produce titanium trichloride having regularly-shaped granules and improved catalytic properties suitable for use with an organoaluminum co-catalyst in the polymerization of olefins.