Concentrates with high molecular weight dispersants and their preparation

Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one surface-active agent comprising a low molecular weight hydroxyl or...

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Bibliographische Detailangaben
Hauptverfasser: SALVATORE REA, JACOB ISAAC EMERT, ANDREW J. D. RITCHIE, KARL J. VAN DRIESEN, JAMES P. STOKES, ROBERT A. WILKINSON, GARY HIGTON
Format: Patent
Sprache:eng
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Zusammenfassung:Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one surface-active agent comprising a low molecular weight hydroxyl or amine group.