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:
Apr. 07, 1981
Filed:
Aug. 24, 1978
Applicant:
Inventors:
Daniel C Durand, Martigues, FR;
Pierre M Mangin, Martigues, FR;
Assignee:
Naphthachimie, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526137 ; 2524 / ; 2524 / ; 526125 ; 526142 ; 526144 ; 526151 ; 526351 ; 526352 ;
Abstract
This invention is addressed to catalysts for use in the polymerization of olefins comprising compounds of magnesium and one or more transition metals of groups IVa, Va and VIa, which are at least partially reduced, with the catalysts being prepared by reaction of magnesium, at least one mono-halogenated hydrocarbon and a compound of a transition metal having a valence of at least 4. The catalysts can be used for the polymerization of olefins, such as ethylene, in the low-pressure process.