SE379547

1375631 Rolling lubricants FARBWERKE HOECHST AG 25 Jan 1972 [26 Jan 1971] 3446/72 Addition to 1375632 Heading B3M [Also in Division C5] Metals, e.g. iron and iron alloys, are coldrolled using an aqueous substantially oil-free composition containing (A) at least one watersoluble amine salt of an aryl-sulphnamidoalkylene carboxylic acid and (B) at least one polyaddition product containing residues of (1) ethylene oxide and (2) propylene oxide and/or butylene oxide. Component (B) may be an adduct of the alkylene oxide with diols, polyols, mono-amines, polyamines, alkanolamines, carboxylic acids and amides, or phenols. The saltforming amine is preferably an ethanolamine or isopropanolamine. The composition may contain 0À1-5 wt. per cent of A and 0À5-12 wt. per cent of B. Very many (A) and (B) components are listed. In an example, cast steel is rolled at 6À0 m./min. using chromium steel rolls. The cast steel is sprayed with a 1 : 1 mixture of an 85% aqueous solution of a triethanol-ammonium salt of benzene sulphonyl-N-methyl-#- amino-caproic acid and an ethylene oxide/ polypropylene glycol addition product, the mixture being diluted 1 : 20 with water. Reference has been directed by the Comptroller to Specifications 1,222,254 and 1,236,638.