초록 ▼

Combinations of carboxylic solubilizers, made by reaction of an acylating agent with an N-(hydroxyl-substituted hydrocarbyl) amine and surfactants are useful in incorporating oil-soluble, water-insoluble functional additives into aqueous systems. Typical solubilizers are made by reacting an alkyl-su

Combinations of carboxylic solubilizers, made by reaction of an acylating agent with an N-(hydroxyl-substituted hydrocarbyl) amine and surfactants are useful in incorporating oil-soluble, water-insoluble functional additives into aqueous systems. Typical solubilizers are made by reacting an alkyl-substituted succinic anhydride containing about 12 to about 500 carbon atoms with an alkanol amine such as diethyl ethanol amine. Typical surfactants are non-ionic hydrophilic surfactants such as ethoxylated phenols and ionic surfactants of both the anionic and cationic type. Typical functional additives are anti-wear, extreme pressure and load-carrying agents such as dithiophosphates. The aqueous systems formed with the aid of such combinations are useful, for example, as water-based hydraulic fluids.

대표청구항 ▼

A composition comprising a continuous aqueous phase, and dispersed in said aqueous phase the combination of (A) at least one nitrogen-containing, phosphorus-free carboxylic solubilizer made by the reaction of (A)(I) at least one polycarboxylic acid acylating agent having at least one hydrocarbon-bas

A composition comprising a continuous aqueous phase, and dispersed in said aqueous phase the combination of (A) at least one nitrogen-containing, phosphorus-free carboxylic solubilizer made by the reaction of (A)(I) at least one polycarboxylic acid acylating agent having at least one hydrocarbon-based substituent of at least about 12 to about 500 carbon atoms with (A)(II) at least one (a) N-(hydroxyl-substituted hydrocarbyl) amine, (b) hydroxyl-substituted poly(hydrocarbyloxy) analog of said amine or (c) mixtures of (a) and (b); and (B) at least one surfactant.