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:
Jan. 18, 2005
Filed:
Mar. 13, 2001
Andrei Gonioukh, Liblar, DE;
Lars Wittkowski, Mannheim, DE;
Thomas Dröge, Neustadt, DE;
Ernst Fischer, Speyer, DE;
Roger Klimesch, Alsbach-Hähnlein, DE;
Philipp Rosendorfer, Neustadt, DE;
Gernot Köhler, Meckenheim, DE;
Dieter Littmann, Mücke, DE;
Andrei Gonioukh, Liblar, DE;
Lars Wittkowski, Mannheim, DE;
Thomas Dröge, Neustadt, DE;
Ernst Fischer, Speyer, DE;
Roger Klimesch, Alsbach-Hähnlein, DE;
Philipp Rosendorfer, Neustadt, DE;
Gernot Köhler, Meckenheim, DE;
Dieter Littmann, Mücke, DE;
Basell Polyolefine GmbH, Wesseling, DE;
Abstract
Ethylene homopolymers and copolymers are prepared in a tube reactor at from 160° C. to 350° C. and pressures in the range from 500 to 5000 bar, with or without use of molar mass regulators, using a peroxide mixture comprising from 1 to 95 mol %, based on the total amount of the peroxide mixture, of at least one cyclic peroxide of the formula I,where the radicals R are identical or different and are selected from among alkyl groups and aryl groups, as polymerization initiator.