Hydroxyamide acid products and butyrolactone and butyrolactam products
AssigneeMobil Oil Corporation
InventorsEl-Ahmadi I. Heiba, Albert L. Williams
Life of this patent
Estimating the term…
Abstract
Metal salts and amides of alkyl-lactam acetic acids are prepared by reacting gamma-hydrocarbyl butyrolactone acetic acid compounds derived from alkenylsuccinic anhydrides with metal compounds and amines or amines alone. High molecular weight lactam acid salts and amides and metal complexes and metal carbamates thereof are useful as detergents or dispersants in organic industrial fluids. Another aspect of this invention is a method of preparing lactone acetic acids in yields up to 90% conversion from alkenylsuccinic anhydrides.
Claims5
A novel composition of matter consisting essentially of a lactam salt obtained by reacting in liquid phase a substituted gamma-butyrolactone acetic acid compound derived from a polyisobutylene-maleic anhydride adduct and having the composition ##STR16## wherein R, R' and R" are each selected from the group consisting of hydrogen, an alkyl group, and an alkenyl group, the total carbon atoms contained in R, R' and R" being from 25 to about 800, and wherein R'" is selected from the group consisting of --OH, --OR.sub.a, and --SR.sub.a wherein R.sub.a is an alkyl substituent with one to twenty carbon atoms, with a metal compound and an amine in either order, said metal compound being selected from the group consisting of the carbonate, bicarbonate, hydride and alkoxide of an alkali or alkaline earth metal, said metal compound being reacted under conditions effective to convert said ##STR17## wherein M is said metal and n is its valence, said amine being selected from the group consisting of alkyl amines, cycloalkyl amines, aralkyl amines and alkylene polyamines, said amine having from 1 to about 30 carbon atoms and containing an --NH.sub.2 group and reacted at about 175.degree. C. to about 275.degree. C. for a time effective to replace the infrared band at 1775 cm.sup.-1 by the lactam band at 1770 cm.sup.-1.
A novel composition of matter consisting essentially of a lactam amide obtained by reacting in liquid phase a substituted gamma-butyrolactone acetic acid compound derived from a polyisobutylene maleic anhydride adduct and having the composition ##STR18## wherein R, R' and R" are each selected from the group consisting of hydrogen, an alkyl group, and an alkenyl group, the total carbon atoms contained in R, R' and R" being from 25 to about 800, and wherein R'" is selected from the group consisting of --OH, --OR.sub.a, and --SR.sub.a wherein R.sub.a is an alkyl substituent with one to twenty carbon atoms, with an amine selected from the group consisting of alkyl amines, cycloalkyl amines, aralkyl amines, and alkylene polyamines, said amine having from 1 to about 30 carbon atoms and containing an --NH.sub.2 group, said reaction being conducted at about 175.degree. C. to about 275.degree. C. for a time effective to replace the infrared band at 1775 cm.sup.-1 by the lactam band at 1770 cm.sup.-1.
Dependencies are inferred from the claim text.