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US 4,260,499 AGranted
Water-based lubricants
AssigneeTexaco Inc.
InventorsRichard S. Fein, Charles T. Powers
Life of this patent
Estimating the term…
Abstract
Water-based lubricants having anti-wear and extreme pressure properties containing from 0.1 to 5 percent by weight of an additive package consisting essentially of 0.005 to 4.0 percent of an alkyl phosphonate or an amine adduct thereof; 0.003 to 0.60 percent of an alkaline earth metal hydroxide and or a dye, an ethoxylate of an acid or an alcohol; the balance water.
Claims4
Water-based lubricants for use in metal working processing and as hydraulic fluids comprising;
- in weight percent, from 0.005 to 4.0 percent of a C.sub.6 -C.sub.18 alkyl phosphonate or an amine adduct thereof;
- from 0.005 to 4.0 percent of an ethoxylated oleic acid, ethoxylated dimer acid, or a mixture of ethoxylated rosin fatty acids, from 0.003 to 0.60 percent of an alkali or alkaline earth metal hydroxide, balance water.
Dependencies are inferred from the claim text.