C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 161/00 (2006.01) C10M 137/02 (2006.01) C10M 137/04 (2006.01) C10M 137/08 (2006.01) C10M 137/10 (2006.01) C10M 145/14 (2006.01) C10M 149/04 (2006.01) C10M 149/06 (2006.01) C10M 149/10 (2006.01) C10M 159/12 (2006.01) C10M 167/00 (2006.01)
Patent
CA 2482698
This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and a minor amount of a salt of at least one nitrogen containing polyacrylate and at least one phosphorus acid ester. The invention also relates to lubricating compositions and concentrates containing the same. The present phosphorus salts of the nitrogen containing copolymers provide improved dispersant, viscosity improver and antiwear properties to lubricating compositions.
L'invention concerne une composition de lubrification comprenant une quantité principale d'une huile d'une viscosité de lubrification et une quantité mineure d'un sel d'au moins un polyacrylate à base d'azote et au moins un ester d'acide phosphoré. L'invention traite également de compositions de lubrification et de concentrats contenant ces derniers. Les sels de phosphore actuels des copolymères à base d'azote assurent des propriétés de viscosité et de dispersion améliorées ainsi que des caractéristiques d'anti-usure améliorées pour les compositions de lubrification.
Gahagan Michael P.
Sivik Matthew R.
Ridout & Maybee Llp
The Lubrizol Corporation
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