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. 28, 1986
Filed:
Aug. 06, 1984
Applicant:
Inventors:
Guenter Boettger, Bad Durkheim, DE;
Hans Hammer, Mannheim, DE;
Otto Hertel, Ludwigshafen, DE;
Gerhard Jeschek, Gruenstadt, DE;
Herbert Mueller, Frankenthal, DE;
Emil Scharf, Ludwigshafen, DE;
Willibald Schoenleben, Heidelberg, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564475 ; 564478 ;
Abstract
In preparing or reacting alkanolamines, especially at high temperatures, the use of substantially nickel-free alloy steels prevents corrosion and discoloration.