LUBRICANT COMPOSITION COMPRISING A CARBOXY-TERMINATED REACTION PRODUCT

摘要

A lubricant and, in particular, an aqueous, waste-treatable lubricant such as, for example, a metalworking fluid. The lubricant comprises a carboxy-terminated reaction product (1) prepared by the reaction of at least 2 moles of anhydride with 1 mole of polyalkylene glycol at a temperature of less than 130 DEG C, preferably less than 120 DEG C, and more preferably less than 115 DEG C or (2) prepared by a halomethylation type reaction, ie a kloromethylation type reaction of polyalkylene glycol.