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. 01, 1991
Filed:
Sep. 02, 1988
Applicant:
Inventors:
Bernd Fabry, Korschenbroich, DE;
Robert Piorr, Ratingen-Hoesel, DE;
Frank Clasen, Hilden, DE;
Horst Ritterbex, Duesseldorf, DE;
Hans Bornmann, Duesseldorf, DE;
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf-Hilthausen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
260400 ; 260401 ;
Abstract
The sulfonation of epoxidized ricinoleic acid glycerides with a dry stream of gaseous sulfur trioxide diluted with a carrier gas, followed by a reaction of the sulfonated reaction product with nucleophiles, leads to salt-free and anhydrous products showing surface-active properties.