The use of novel AAA’s (AAA ≡ alkylalkanolamine), novel ASA/AAA (ASA ≡ Alkenyl Succinic Anhydride) compounds and novel AAA based carboxamides as emulsifiers/additives in emulsion metalworking fluids

摘要

Structurally unique AAA’s can be prepared by adaptations of standard methods. Furthermore, thereaction of alkenyl succinic anhydrides (ASA’s) with N-alkylalkanolamines (AAA’s) provides mixedamide/ammonium carboxylates with good emulsifying properties. Analogous completely ammoniumcompounds can be prepared by pre-hydrolysis of the ASA followed by neutralization with AAA. AAAalkanolamides can be prepared by the reaction of secondary AAA’s with carboxylic acids and/or esters.This talk will describe the preparation of a number of amide/ammonium ASA/AAA adducts, theanalogous all-ammonium compounds, AAA amides and structurally unique AAA’s. A comparison of theemulsifying, corrosion inhibiting, metal staining and biostabilizing properties of these differentalkanolamine derivatives will be presented. Formulation guidelines and economic considerations will besummarized, and the overall applicability of these materials to metalworking fluids will be discussed.