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:
Apr. 26, 1983
Filed:
May. 20, 1981
Alfred Struve, Hilden, DE;
Henkel Kommanditgesellschaft Auf Aktien, Dusseldorf-Holthausen, DE;
Abstract
A process for the conjugation of the double bonds of polyunsaturated fatty acids or mixtures of fatty acids containing polyunsaturated fatty acids comprising treating said fatty acids with SO.sub.2 in the presence of substoichiometric amounts of soap-forming bases in a closed reaction vessel or in a reaction vessel equipped with a reflux condenser, at a temperature range of from 170.degree. C. to 260.degree. C.; particularly wherein the process is performed in the presence of from 0.5 to 25 mol % of SO.sub.2, 0.5 to 25 mol % of soap-forming alkali metal and/or alkaline earth metal compounds, and 0.05 to 2% by weight, based on the fatty acid starting material, of water.