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. 03, 2010
Filed:
Nov. 03, 2004
Applicants:
Michael Grün, Hanau, DE;
Klaus Heyne, Bruchköbel, DE;
Claudine Mollenkopf, Frankfurt, DE;
Sam Lee, Cumming, GA (US);
Roger Uhrhammer, Aurora, IL (US);
Inventors:
Michael Grün, Hanau, DE;
Klaus Heyne, Bruchköbel, DE;
Claudine Mollenkopf, Frankfurt, DE;
Sam Lee, Cumming, GA (US);
Roger Uhrhammer, Aurora, IL (US);
Assignee:
Degussa AG, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
Spherical particles comprising magnesium alcoholate and having a poured cone height of less than 17 mm are prepared by reacting magnesium, an alcohol or a mixture of various alcohols and a halogen and/or an optionally organic halogen compound with one another at below the boiling point of the alcohols. The spherical particles are employed as a precursor for olefin polymerization catalysts.