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. 14, 1984
Filed:
Jul. 19, 1982
Applicant:
Inventor:
Genevieve Le Brasseur, Bully les Mines, FR;
Assignee:
Societe Chimique des Charbonnages-CdF Chimie, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
502104 ; 502107 ; 502117 ; 502125 ; 502133 ; 502134 ; 526124 ; 526125 ;
Abstract
A halogen-containing catalyst for the polymerization of ethylene or copolymerization of ethylene and .alpha.-olefins having from 3 to 8 carbon atoms and a process for their preparation. The catalyst has the general formula: M.sub.n Mg(OR).sub.2-m X.sub.m+4n, wherein M is a metal of groups IVa to VIa of the Periodic Tables, X is a halogen, R is an alkyl radical containing from 1 to 4 carbon atoms, 0<m<2, and 0.05<n<1.