초록 ▼

Nitrogen-containing phosphorus-free carboxylic acid derivatives made by reaction of an acylating agent with an alkanol tertiary monoamine are described. Typically the carboxylic acylating agent is an alkyl or alkenyl succinic anhydride containing about 20 to about 500 carbon atoms in the alkyl or al

Nitrogen-containing phosphorus-free carboxylic acid derivatives made by reaction of an acylating agent with an alkanol tertiary monoamine are described. Typically the carboxylic acylating agent is an alkyl or alkenyl succinic anhydride containing about 20 to about 500 carbon atoms in the alkyl or alkenyl group. A typical amine is diethyl ethanol amine. These derivatives are useful in incorporating oil-soluble, water-insoluble functional additives, such as metal salts of acid phosphate and thiophosphate hydrocarbyl esters, into water-based functional fluids such as water-based hydraulic fluids.

대표청구항 ▼

A composition comprising: water; and dispersed in said water nitrogen-containing, phosphorus-free carboxylic acid derivative made by reaction, at a temperature in the range of about 30°to the decomposition temperature of one or more of the reaction components, of (A) at least one carboxylic acid acy

A composition comprising: water; and dispersed in said water nitrogen-containing, phosphorus-free carboxylic acid derivative made by reaction, at a temperature in the range of about 30°to the decomposition temperature of one or more of the reaction components, of (A) at least one carboxylic acid acylating ageant with (B) at least one alkanol tertiary monoamine, said acylating agent having at least one hydrocarbyl-based substituent of about 20 to about 500 carbon atoms and said monoamine (B) having one hydroxyl group and a total of up to about 40 carbon atoms, said water being provided in an effective amount to disperse said derivative in said water.