Process for making a high molecular weight alkylphenoxy substituted aliphatic carboxylic ester
AssigneeEdwin Cooper, Inc.
InventorsJohn Scotchford Elliott, Bryan Terence Davis, Richard Martin Howlett
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Abstract
Alkylphenoxy alkanoic esters are made in high yield by reaction of a C.sub.50-200 alkylphenol with a halo-substituted alkanoic ester in the presence of a base. The reaction product contains little unreacted alkylphenol and is converted without separation to a reaction mixture containing mainly alkylphenoxy alkanoic amide by reaction with amines. The amide reaction mixture is an effective ashless dispersant for lubricating oil.
Claims15
A process for making a high molecular weight alkylphenoxy-substituted aliphatic carboxylic ester from an alkylphenol containing 50-200 carbon atoms in the alkyl group, said process being conducted without separating C.sub.50-200 alkylphenol from the resultant product, said process comprising reacting at least one alkyl-substituted phenol in which the alkyl substituent contains from 50 to 200 carbon atoms with at least one halogen-substituted aliphatic carboxylic ester to obtain said alkylphenoxy-substituted aliphatic carboxylic ester in high yield.
A product made by the process comprising reacting at least one alkyl-substituted phenol in which the alkyl substituent contains from 50 to 200 carbon atoms with at least one halogen-substituted aliphatic carboxylic ester to obtain a reaction product containing a major amount of C.sub.50-200 alkylphenoxy aliphatic carboxylic ester and a minor amount of C.sub.50-200 alkylphenol, said process being conducted without removing said minor amount of said C.sub.50-200 alkylphenol from said product.
Dependencies are inferred from the claim text.