Method for preparing a lactone reaction product
AssigneeTexaco Inc.
InventorJustin Christopher Powell
Life of this patent
Estimating the term…
Abstract
Method for preparing a lactone reaction product comprising reacting an alkenylsuccinic acid under substantially anhydrous conditions in the presence of a protonating agent and at an elevated temperature ranging up to about 100.degree. C., and a motor fuel composition containing said lactone reaction product.
Claims23
A high molecular weight alkenyl-substituted lactone reaction product prepared by the steps comprising admixing an alkenylsuccinic acid, said alkenyl radical having an average molecular weight ranging from about 300 to 3,000, with a protonating agent or electron pair acceptor selected from the group consisting of sulfuric acid, perchloric acid, p-toluene sulfonic acid, boron triflouride etherate and sulfonic acid ion exchange resins to form a substantially anhydrous reaction mixture and reacting said mixture under substantially anhydrous reaction conditions at an elevated temperature up to about 100.degree. C until infrared spectra at about 5.66 and 5.74 micrometers indicates a substantial conversion of said alkenyl-succinic acid to said lactone reaction product.
A motor fuel composition comprising a mixture of hydrocarbons in the gasoline boiling range containing a deposit inhibiting amount of a high molecular weight alkenyl-substituted lactone reaction product prepared by the steps comprising admixing an alkenylsuccinic acid, said alkenyl radical having an average molecular weight ranging from about 300 to 3,000, with a protonating agent or electron pair acceptor selected from the group consisting of sulfuric acid, perchloric acid, p-toluene sulfonic acid, boron triflouride etherate and sulfonic acid ion exchange resins to form a substantially anhydrous reaction mixture and reaction said mixture under substantially anhydrous reaction conditions at an elevated temperature up to about 100.degree. C until infrared spectra at about 5.66 and 5.74 micrometers indicates a substantial conversion of said alkenylsuccinic acid to said lactone reaction product.
A motor fuel composition according to claim in which said reaction product is prepared at a temperature ranging from about 60.degree. to 100.degree. C.
Dependencies are inferred from the claim text.