Bp Chemicals (additives) Limited

William D Carlisle

A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyepoxide with a dispersant having at least one reactive nitrogen-containing moiety. Intermediates of the general formula IV ##STR1## where Y' is a group derived from the reaction of the polyepoxide with reactive nitrogen-containing moieties (i.e. primary or secondary amines) are novel. The process for preparing the lubricating oil soluble compounds comprises at least 2 sequential steps. Lubricating oil compositions comprises a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.

Lubricating oil additives, their preparation and use

A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature an epoxyacrylate with a dispersant having at least one reactive nitrogen-containing moiety. Intermediates of the general formula IV ##STR1## where Y' is a group derived from the reaction of the epoxyacrylate with reactive nitrogen-containing moieties (ie primary or secondary amines) are novel. The process for preparing the lubricating oil soluble compounds can be a one step or multistep process. Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.

A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyacrylate with a dispersant having at least one reactive nitrogen--containing moiety. Intermediates of the general formula IV ##STR1## where Y.sup.1 is a group derived from the reaction of the polyacrylate with the reactive nitrogen-containing moieties (i.e. primary or secondary amine) are novel. The process for preparing the lubricating oil soluble compounds can be a one step or multistep process. Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.

Process for the production of ester derivatives useful as fuels and

A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyacrylate with a dispersant having at least one reactive nitrogen--containing moiety. Intermediatese of the general formula IV ##STR1## where Y.sup.1 is a group derived from the reaction of the polyacrylate with the reactive nitrogen-containing moieties (i.e. primary or secondary amine) are novel. The process for preparing the lubricating oil soluble compounds can be a one step or multistep process. Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.

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Hull, United Kingdom

William D Carlisle