Water-based industrial fluids
AssigneeSinger & Hersch Industrial Development (Pty.) Ltd.
InventorHaimi N. Singer
Life of this patent
Estimating the term…
Abstract
Substantially oil-free aqueous industrial fluids comprise (A) up to as much as 99.9 percent by weight water, (B) at least one substantially water-insoluble functional additive stably dispersed in the water and (C) at least one substantially water-soluble liquid organic dispersing agent, said dispersing agent being capable of dispersing said functional additive in said fluid and are useful as liquids in a variety of industrial applications, such as hydraulic systems and metal shaping operations. Typically, these compositions also contain at least one water-soluble polymeric thickener and at least one corrosion inhibitor. Methods for preparing these fluids from concentrates are also disclosed.
Claims27
A substantially oil-free aqueous composition of matter useful as a lubricant or functional liquid comprising (A) a major amount of water including up to as much as 99.9 percent by weight of water, (B) a minor amount of at least one substantially water-insoluble, oil-soluble functional additive stably dispersed therein, wherein the functional additive (B) is a sulfur- or chlorosulfur-containing E.P. agent or mixture of two or more of these, (C) a minor amount of at least one substantially water-soluble, liquid organic dispersing agent, said dispersing agent being capable of stably dispersing said functional additive in said aqueous composition and wherein (D) at least one water-soluble polymeric thickener for said aqueous composition is present.
A substantially oil-free aqueous composition of matter useful as a lubricant or functional liquid comprising (A) a major amount of water including up to as much as 99.9 percent by weight of water, (B) a minor amount of at least one substantially water-insoluble, oil-soluble functional additive stably dispersed therein, wherein the functional additive is a sulfur- or chlorosulfur-containing E.P. agent or mixture of two or more of these, (C) a minor amount of at least one substantially water-soluble, liquid organic dispersing agent, said dispersing agent being capable of stably dispersing said functional additive in said aqueous composition and wherein (D) at least one water-soluble polymeric thickener for said aqueous composition is present wherein the dispersing agent (C) is selected from the group consisting of hydroxyl-substituted hydrocarbon amines, hydrocarbon amines, polyols of 3 to 8 hydroxyls, alkylene glycols, polyoxyalkylene glycols, sulfonated hydrocarbons, and mixtures of two or more of these.
Dependencies are inferred from the claim text.