Henkel Kommanditgesellschaft Auf Aktien

Degussa Aktiengesellschaft

Peter Nikolaus

Uwe Ploog

Guenter Uphues

Horst Rutzen

Robert Piorr

Rudolf Lehmann

Martin Bischoff

Hans-Joachim Schluessler

Low viscosity amphoteric surfactants are prepared by quaternization of low diamine content imidazolines by a process in which certain addition and temperature parameters are strictly observed. Imidazolines suitable as a starting material may be obtained by heating fatty acids and aminoethanolamine in an inert solvent until water is eliminated, removing the water formed from the reaction mixture by azeotropic distillation and, finally, distilling off the solvent and the residual amine.

Process for the production of low-viscosity amphoteric surfactants

An additive for cleaning preparations comprising a foam-inhibitive effective amount of a compound of the formula

Hydroxyalkyl polyethylene glycol ether foam inhibitors

Process for the manufacture of quaternary ammonium compounds by reacting a compound having a terminal epoxide troup with a salt of a tertiary amine in the presence of a quaternary ammonium compound as catalyst.

Process for manufacture of quaternary ammonium compounds

Growing community of inventors

Hilden, Germany

Peter Nikolaus