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. 28, 1995
Filed:
Sep. 29, 1993
Applicant:
Inventors:
Rolf Fikentscher, Ludwigshafen, DE;
Knut Oppenlaender, Ludwigshafen, DE;
Johannes P Dix, Weisenheim, DE;
Wilfried Sager, Mutterstadt, DE;
Hans-Henning Vogel, Frankenthal, DE;
Klaus Barthold, Mannheim, DE;
Guenther Elfers, Birkenau, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252344 ; 252358 ;
Abstract
The present invention relates to the use of trialkanolamine polyethers obtained by condensation of one or more trialkanolamines in the presence of phosphorous acid and/or hypophosphorous acid as demulsifiers for oil-in-water emulsions.