Metal working lubricating composition.

摘要

The invention relates to a lubricating composition for the manufacture and surface treatment of metallic pipe, wire, sheet and so on. The composition of the invention contains a high molecular compound having a weight average molecular weight of not less than 10,000 which is obtainable by reacting a polyalkylene oxide compound available on addition-polymerization of an ethylene oxide-containing alkylene oxide and an organic compound having two active hydrogen groups with a polycarboxylic acid or the corresponding anhydride or lower alkyl ester or a diisocyanate. The composition forms a highly lubricating film, and since this film is readily soluble in water and organic solvents, residues of the lubricating composition on the treated surface can be easily dissolved off after metal working.