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:
Oct. 10, 2006
Filed:
Feb. 21, 2003
Applicants:
Jan-gerd Hansel, Köln, DE;
Gert Jabs, Odenthal, DE;
Johannes Kaulen, Odenthal, DE;
Hans-georg Adams, Leverkusen, DE;
Hans-günter Fröhlen, Leverkusen, DE;
Inventors:
Jan-Gerd Hansel, Köln, DE;
Gert Jabs, Odenthal, DE;
Johannes Kaulen, Odenthal, DE;
Hans-Georg Adams, Leverkusen, DE;
Hans-Günter Fröhlen, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for preparing dimethyl propanephosphonate, characterized in that dimethyl phosphite is reacted with propene in the presence of a free-radical former at a reaction temperature of 60 to 95° C., the half life of the free-radical former being 0.1 to 20 min at the reaction temperature.