Texaco Inc.

Robert H Jenkins, Jr

Rodney L Sung

William M Sweeney

Cyril A Migdal

Edward Mitchell

Tze C Jao

Frank J Gaetani

Carl K Esche

Elzie D Black

John J Mahusky

Marilyn Hall

Polymeric step ladder polysuccinimide compositions prepared by coupling the polyamine segments of polyalkenyl succinimides with dicarboxylic acids are useful as improved lubricating oil dispersants which are more compatible with engine seals made of synthetic rubbers such as Viton.RTM. than existing additives.

Polymeric step ladder polysuccinimide compositions suitable for

An improved process for the preparation of sulfurized overbased alkaline earth metal phenates comprises steps of:

Process for the preparation of sulfurized overbased phenate detergents

A novel diluent composition for handling fuel additives comprising a mixture of hydrocarbons in the avjet boiling range in combination with primary amyl alcohol.

Carrier composition for introducing additives to a motor fuel

Gasoline of reduced combusiton chamber deposits attained by addition of, as an additive, a reaction product of alpha-hydroxy omega hydroxy-poly (oxyethylene) poly (oxypropylene) poly (oxyethylene) block copolymer, maleic anhydride and N-tallow-1,3-propane diamine.

Polyol-acid anhydride-N-alkyl-alkylene diamine reaction product and

Gasoline of reduced combustion chamber deposit attained by addition of, as additive, a reaction product of polyoxyisopropylenediamine-maleic anhydride-N-tallow-1,3-propane diamine.

Polyoxyisopropylenediamine-acid anhydride-n-alkyl-alkylene diamine

Gasoline of reduced combustion chamber deposit attained by addition of, as additive, a reaction product of polyoxyisopropylenediamine-polyalkylene polyamine-maleic anhydride.

Polyoxyisopropylenediamine-acid anhydride-polyamine reaction product and

Provided is a Mannich reaction product prepared by reacting malonic acid, formaldehyde and an amine, wherein the amine is represented by the formula: R--NH.sub.2, and R--NH--CH.sub.2 --CH.sub.2 --CH.sub.2 --NH.sub.2, in which R is a hydrocarbyl radical having from about 6 to 20 carbon atoms, and, also, a motor fuel composition containing the same that is non-corrosive and non-fouling.

Mannich reaction product for motor fuels

The invention relates to a novel compound comprising the reaction product of a benzophenonetetracarboxylic dianhydride or a benzophenonetetracarboxylic acid, in particular, 3,3'4,4'-benzophenonetetracarboxylic dianhydride, and a polyol, and the use of this novel compound as a stabilizer for middle distillate fuels extended with non-petroleum distillates.

Diesel fuel additive

Avjet fuel, extended with shale oil distillate boiling in the diesel fuel boiling range, is improved with respect to thermal stability by addition of 0.2 w % of ##STR1##

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Walden, NY, United States of America

Robert H Jenkins, Jr