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:
Feb. 10, 1998
Filed:
Apr. 17, 1996
Applicant:
Inventors:
Hans-Josef Buysch, Krefeld, DE;
Volker Glock, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558 82 ;
Abstract
For the continuous preparation of 6-oxo-(6H)-dibenz-�c,e!�1,2!-oxaphosphorins (ODOPs), 6-chloro-(6H)-dibenz-�c,e!�1,2!-oxaphosphorins (CDOPs) are continuously reacted with at least the stochiometrically required amount of water at elevated temperature in a reaction section having little backmixing.