Orogil

Rhone-progil

Bernard Demoures

Jean-Louis Marie Le Coent

Francois Giolito

Daniel Llauro

High alkalinity metallic lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized calcium alkylphenate are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The glycol, water, and sediment are then removed from the resulting medium.

High alkalinity metallic detergent-dispersant additives for lubricating

Super-alkalinized lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized alkylphenol are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The resulting medium is neutralized and super-alkalinized with lime, and the glycol and sediment are removed.

Super-alkalinized detergent-dispersant additives for lubricating oils

A process is provided for preparing detergent-dispersant compositions of high alkalinity by:

Process for the preparation of superalkalinized metallic

A process is provided for preparing detergent-dispersant compositions of a TBN of at least about 200, containing at least about 2 percent magnesium, by:

Process for the preparation of detergent dispersants of high alkalinity

A process of preparing metallic detergent-dispersant compositions is provided by:

Process of preparing metallic detergent-dispersant additives of high

New detergent-dispersants of high alkalinity useful as additives for lubricating oils and a novel process for their preparation are provided. The novel detergent-dispersant additives are prepared by:

Detergent-dispersants of high alkalinity for lubricating oils and

New lubricating oil additives are provided comprising the reaction product of a hydroxy compound, such as an alcohol or hydroxyaromatic compound, with an aliphatic chain substituted-carboxylic anhydride, acid, chloride, or ester, which aliphatic chain substituent is substantially saturated and contains at least about 30 carbon atoms, said reaction product being neutralized with an ashless basic compound, so that the final product or additive contains at least about 0.9%, up to about 2.5%, by weight of nitrogen. Lubricating oils, fuel oils, and carburants containing the new additives have excellent detergent, dispersing and anti-rust properties.

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Puteaux, France

Bernard Demoures