Patent ID: 7816306

Claim:
A lubricant composition for hot forming comprising: a solid lubricant from 10 to 40% by mass; a water-dispersible synthetic resin from 5 to 20% by mass; an inorganic acid amine salt from 0.5 to 5% by mass; and water from 45 to 80% by mass, for 100% by mass of the total mass of the lubricant composition, wherein said water-dispersible synthetic resin is a vinyl acetate polymer obtained by emulsion polymerization using protective colloid selected from a group consisting of hydroxyethyl cellulose, sodium salt of carboxymethyl cellulose, and ammonium salt of carboxymethyl cellulose, or a vinyl acetate polymer obtained by emulsion polymerization using co-polymeric surfactant, and the inorganic acid of said inorganic acid amine salt is selected from boric acid, molybdenum acid or tungsten acid.