Synergistic antioxidant combinations for lubricating oils

Details Synergistic antioxidant combinations for lubricating oils Synergistic antioxidant combinations for lubricating oils

C - Chemistry, Metallurgy

10

M

C10M 141/00 (2006.01) C09K 15/10 (2006.01) C10M 135/20 (2006.01) C10M 141/08 (2006.01) C10M 141/10 (2006.01)

Patent

CA 2202791

This invention provides synergistic combinations of dithioketals with hindered phenols, phosphite esters, or mixtures thereof. These combinations are useful antoxidants in lubricating oils.

La présente invention a pour objet des combinaisons synergiques de dithiocétals avec des esters de phosphite et des phénols inhibés, ou des mélanges de ces derniers. Ces combinaisons constituent des antioxydants utiles pour les huiles de graissage.

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