Oleaginous concentrates

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 163/00 (2006.01) C10M 129/95 (2006.01) C10M 133/52 (2006.01) C10M 135/18 (2006.01) C10M 137/10 (2006.01) C10M 159/12 (2006.01) C10M 159/22 (2006.01) C10M 159/24 (2006.01) F02M 37/14 (2006.01) F02M 37/22 (2006.01) F02M 37/10 (2006.01)

Patent

CA 2327777

Concentrates for lubricating oil compositions are prepared by blending at elevated temperature: (A) at least one high molecular weight ashless dispersant; and (B) at least one oil-soluble metal detergent; in the presence of (C) at least one metal salt of a dihydrocarbylphosphorodithoic acid wherein the metal of the metal salt is an alkali metal, an alkaline earth metal, or zinc, aluminium, lead, tin, molybdenum, manganese, nickel or copper.

L'invention se rapporte à des concentrés pour compositions à base d'huiles lubrifiantes, lesdits concentrés étant préparés par le mélangeage à des températures élevées de ce qui suit: (a) au moins un agent de dispersion sans cendre à poids moléculaire élevé; et (b) au moins un détergent pour métaux soluble dans l'huile, et ce en présence de (c) au moins un sel métallique d'un acide dihydrocarbylphosphorodithoïque, le métal dudit sel métallique se présentant comme un métal alcalin, alcalino-terreux, ou le zinc, l'aluminium, le plomb, l'étain, le molybdène, le manganèse, le nickel ou le cuivre.

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