Environmentally compatible additives for aqueous lubricants

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 145/00 (2006.01) B05D 1/00 (2006.01) B05D 5/08 (2006.01) C10M 173/02 (2006.01)

Patent

CA 2482842

Lubricating compositions, containing non-modified and modified multifunctional, polyionic copolymers and an aqueous lubricating medium, and methods for making and using such compositions are described herein. The lubricating compositions are applied to metal oxide surfaces, which are in contact with each other. The copolymers can serve as a surface protective boundary layer for the sliding surfaces, or they can also be used for the immobilization of further molecules, which can modify the tribological properties of the surfaces.

L'invention concerne des compositions lubrifiantes contenant des copolymères polyioniques multifonctionnels modifiés et non modifiés et un milieu de lubrification aqueux. L'invention concerne également des procédés permettant de fabriquer et d'utiliser de telles compositions. Les compositions lubrifiantes décrites dans cette invention sont appliquées à des surfaces d'oxyde métallique qui sont en contact les unes avec les autres. Les copolymères peuvent être utilisés en tant que couche limite de protection de surface pour les surfaces glissantes; ou ils peuvent être utilisés pour l'immobilisation d'autres molécules pouvant modifier les propriétés tribologiques des surfaces.

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