Patent ID: 6165950
Filing Date: 2000-12-26
Classification: B22C,B22D,C10M,C10N

Abstract:
A concentrated lubricant composition for metal forming, the composition comprising:(a) about 1% to about 50% by weight of at least one triaryl phosphate ester;(b) about 5% to about 35% by weight of a non-ionic surfactant, an amphoteric surfactant or a mixture thereof;(c) about 2% to about 15% by weight of an organic sulfur-containing extreme pressure additive that reduces the force required for the forming process;(d) an amine salt selected from the group consisting of amine salts of carboxylic acids, amine salts of polyacrylic acids, and amine salts of partially neutralized esters of phosphoric acid and ethoxylated alcohols; and(e) sodium thiosulfate;in which:the ratio of triaryl phosphate esters to amine salts is about 0.50:1 to about 10:1, and wherein said composition is an emulsion that has a room temperature shelf life of at least 20 days.