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:
Sep. 14, 1999
Filed:
Mar. 14, 1997
Applicant:
Inventors:
Manfred Winter, Dittelsheim-Hessloch, DE;
Jacques Dupuis, Ludwigshafen, DE;
Michael Kroner, Bergholz-Rehbrucke, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ; C07D / ;
U.S. Cl.
CPC ...
203-1 ; 203 60 ; 203 91 ; 203 99 ; 203D / ; 564216 ;
Abstract
In a process for the continuous distillation of thermolabile monomers under reduced pressure in the presence of formamide in a column,