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:
Jun. 18, 1991
Filed:
May. 25, 1989
Gerald Jakobson, Rheinberg, DE;
Werner Siemanowski, Rheinberg, DE;
Karl-Heinz Uhlig, Krefeld-Traar, DE;
Deutsche Solvay-Werke GmbH, Solingen, DE;
Abstract
A process for the preparation of fatty acid or hydroxy fatty acid esters of isopropylidene derivatives of a polyglycerol involves reacting C.sub.1 -C.sub.4 -alkyl esters of C.sub.6 -C.sub.22 -fatty acids or mono- or polyhydroxy fatty acids in alkaline medium with one or more hydroxyl-containing isopropylidene derivatives of a polyglycerol. The resultant fatty acid or hydroxy fatty acid esters of mono- and/or diisopropylidene derivatives of polyglycerol are useful as intermediates for the preparation of nonionic surfactants, as solvents or solubilizing agents and for cosmetic formulations and skin care preparations.