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:
Nov. 05, 1996
Filed:
Aug. 01, 1995
Applicant:
Inventors:
Bernd Papenfuhs, Neu otting, DE;
Reinhard Vybiral, Burgkirchen, DE;
Assignee:
Hoechst AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
554 70 ; 554187 ; 554188 ; 554 69 ; 554 68 ; 554 66 ;
Abstract
Process for preparing solutions of polyhydroxy-fatty acid amides having good color quality In the process described, at least one sulfur compound from the group of dithionous acid is added in an active amount to the crude solutions, which are in general more or less brown in color, after which water-clear polyhydroxy-fatty acid amide products result.