Novel emulsifiers, thickeners and antioxidants based on hydroxy carboxylic acids – recent developments

We reported* (several times) about the syntheses of O-acylated hydroxy carboxylic acid anhydrides and their use as key intermediates for combination products with several different nucleophiles. Series of novel surface active compounds were obtained, which could be interesting for use as surfactants, emulsifiers, thickeners and antioxidants in cosmetics, nutrition and industrial processes. We tested partly the physical and chemical behavior and the biological activities as well. In this lecture we will report about recent developments in preparation of new combination products based on hydroxy carboxylic acids and their properties as multifunctional molecules.

* Lange K, Schneider M P (2006) O-acylated hydroxy carboxylic acid anhydrides and a method for their preparation; German Patent DE 102006014732 A1