Patent ID: 8541350

Claim:
An aqueous liquid lubricant composition comprising: A) At least one organic polymer and/or a wax dispersion, A) being selected from the group consisting of polyethylene dispersions, polyvinyl alcohols, polyvinylpyrrolidones, acrylic polymers, vinyl acetate polymers, epoxy polymers, urethane polymers, and phenolic polymers; B) At least one water soluble phosphate salt and/or phosphoric acid, said salt being present in an amount up to solubility limits of the salt; C) optionally, at least one surfactant; D) optionally at least one thickening aid; E) optionally, at least one anti-wear additive; F) optionally, at least one defoaming agent; G) optionally, at least one corrosion inhibitor; and H) optionally, at least one liquid linear or branched hydrocarbon different from A); wherein the composition has a pH of at least about 3.0 and not more than 6.5, and the weight ratio of (A) to (B) ranges from about 10 to about 0.1.