Anti-wear (AW) and high pressure (EP) additives:
Water-free phosphoric acid esters, also phosphatic ester or phosphates mentioned are the general names for a multiplicity of connections for industrial applications, these reacts also as sole active substances, which prevent the wear in the boundary friction area during metallic contact surfaces sliding one on the other. The tri aryl and tri alkyl phosphates are normally won from the appropriate alcohols or phenols and phosphoroxidechlorides. On the other hand the production of alkylarphosphates is more complicated and requires a two-stage reaction. From at present available phosphatic esters we offer a power spectrum working for many decades for oil and water-soluble applications.