Rewo Chemische Werke Gmbh

Witco Surfactants Gmbh

Winfried Wehner

Hans-Jurgen Kohle

Ingo Hamann

Joachim Weigand

Horst Birkhan

Hans-Juergen Kohle

Elke Hohn

Joachim Welgand

The invention relates to a process for the preparation of highly concentrated free-flowing and pumpable aqueous solutions of betaines by quaternization of a compound which contains tertiary amine nitrogen with a .omega.-halo carboxylic acid characterized in that 0.5-5% by weight of the final product, of a viscosity-reducing compound such as an alkali or alkaline earth metal citric acid salt is added to the reaction mixture before or during the quaternization reaction.

Process for preparation of highly concentrated free-flowing aqueous

The invention relates to a process for preparing highly concentrated, free-flowing and pumpable, aqueous solutions of betaines by quaternization of compounds containing tertiary amine nitrogen with omega-halocarboxylic acids by known processes, which is characterized in that a) 30-100 equivalent-%, based on the amount of omega-halocarboxylic acid used, of Mg(OH).sub.2 and/or Ca(OH).sub.2 and b) 0-70 equivalent-%, based on the amount of omega-halocarboxylic acid used, of one or more NaOH, KOH and NH.sub.4 OH are added to the reaction mixture before or during the quaternization reaction.

Process for preparing highly concentrated, free-flowing aqueous

The invention relates to a process for the preparation of highly concentrated free-flowing aqueous solutions of betaines, which is characterized in that at least one of the compounds of the general formula (I) ##STR1## is added to the reaction mixture before or during the quaternization reaction; wherein R, R.sup.1, R.sup.2, are each C.sub.1 -C.sub.10 alkyl, optionally substituted with hydroxyl, and n is 1-3.

Process for the preparation of highly concentrated free-flowing aqueous

The present invention relates to a soft-rinsing agent comprising a mixture of two soft-rinsing components, each of which is a quaternary salt as described herein. The mixture may contain 10-90% of the first component and 90-10% by the second component.

Fabric softener rinsing agents

Ammonium compounds and the use thereof as fabric softener comprising mixtures of quaternary ammonium compounds with or without ester groups prepared by reacting amines with dimerized fatty acids and subsequent quaternization or protonation with inorganic or organic acids.

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Neuhof, Germany

Winfried Wehner