Cold rolling lubrication

Claim 1

IN A ROLLED METHOD OF COLD ROLLING METALS, IN WHICH THE ROLL-METAL INTERFACE IS LUBRICATED WITH A CIRCULATING LUBRICATING COMPOSITION, THE IMPROVEMENT COMPRISING USING AS SAID CIRCULATING LUBRICATING COMPOSITION A DILUTE AQUEOUS SOLUTION OF A BLEND OF (A) FROM 40 TO 95% BY WEIGHT OF A SALT FORMED BETWEEN (I) AT LEAST ONE AMINE WHICH IS NON-VOLATILE AT AMBIENT TEMPERATURE AND (II) AN ACID SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS CONTAINING AT LEAST 12 CARBON ATOMS, FATTY ACID DISTILLATION RESIDUES, AND SYNTHETIC POLYMERISED FATTY ACIDS; (B) 0.1 TO 20% BY WEIGHT OF A SURFACTANT SELECTED FROM THE GROUP CONSISITNG OF (I) POLYOXYALKYLENE OXIDE CONDENSATES OF AN AICD SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS AND ROSIN ACIDS, (II) SORBITAN ESTERS OF AN ACID SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS CONTAINING AT LEAST 12 CARBON ATOMS, FATTY ACID DISTILLATION RESIDUES, AND SYNTHETIC POLYMERISED FATTY ACIDS, AND (III) POLYOXYALKYLENE CONDENSATES OF SAID SORBITAN ESTERS (II); (C) 5 TO 50% BY WEIGHT OF A SYNTHETIC FATTY ACID ALKYL ESTER, THE FATTY ACID CONTAINING AT LEAST 12 CARBON ATOMS AND THE ALKYL GROUP CONTAINING UP TO 4 CARBON ATOMS; AND (D) 0 TO 5% BY WEIGHT OF A WATER SOLUBLE BACTERICIDE; NONE OF THE CONSTITUENTS OF THE BLEND BEING EMULSIFIED IN SAID SOLUTION AND NONE OF THEM SEPARATING FROM THE SOLUTION AT ANY OF THE TEMPERATURES ENCOUNTERED IN THE COLD ROLLING AND IN THE CIRCULATION OF THE SOLUTION DURING THE COLD ROLLING.