METHOD FOR PRODUCING QUATERNAUS AMMONIUM SALTS LONG-CHAIN ALIPHATIC CARBONIC ACIDS AND USE OF THESE AMMONIUM SALTS

摘要

A tertiary amine which carries on the nitrogen atom two short-chain and one long-chain aliphatic hydrocarbon radical is reacted with dimethyl or methyl ethyl carbonate, if necessary, excess carbonate is removed, and reacted at 40 to 140 DEG C with a long-chain aliphatic carboxylic acid, where appropriate with the addition of solvents. After removal of the volatile reaction products and, if present, the solvent, the ammonium salt remains as residue which can often be used without further purification, for example as constituent of laundry soft rinses.