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. 15, 1997
Filed:
Mar. 06, 1995
Applicant:
Inventor:
Ludwig Bohm, Hattersheim am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502105 ; 502104 ; 502117 ; 502133 ; 5261242 ; 526352 ;
Abstract
A Ziegler catalyst in which the transition metal component has been prepared by reacting a transition metal compound of titanium, zirconium, vanadium or chromium with a gel-like dispersion of a magnesium alcoholate is used for the preparation of poly-1-olefins, in particular polyethylene. The co-catalyst used is an organoaluminum compound. The polymers are obtained in a high to very high yield, and it is possible to control the particle size distribution of the polymers.