Blend comprising group ii and group iv basestocks

Details Blend comprising group ii and group iv basestocks Blend comprising group ii and group iv basestocks

C - Chemistry, Metallurgy

10

M

C10M 111/04 (2006.01) C10M 101/00 (2006.01) C10M 107/10 (2006.01)

Patent

CA 2623087

The invention relates to compositions comprising a blend of Group II basestocks and low volatility, low viscosity PAO basestocks. The blend is particularly useful for preparing finished lubricants that meet or even exceed the criteria for SAE Grade 0W multi-grade engine oils. The combination of these low volatility, low viscosity PAOs with Group II basestocks provide, in embodiments, the necessary performance criteria in automatic transmission fluids, automotive or industrial gear oils, hydraulic fluids, or any other high performance lubricant requiring a combination of excellent low fluidity and low volatility.

L'invention concerne des compositions comprenant un mélange d'huiles de base de groupe II et d'huiles de base de polyalphaoléfines (PAO) de faible viscosité et de faible volatilité. Ce mélange est particulièrement utile pour préparer des lubrifiants finis qui satisfont ou qui surpassent les critères des huiles moteur multigrade 0W Grade SAE. La combinaison de ces PAO de faible viscosité et de faible volatilité et d'huiles de base de groupe II permet d'obtenir, dans des modes de réalisation de l'invention, les critères de performance nécessaires dans des fluides de transmission automatique, des huiles pour engrenages industriels ou automobiles, des fluides hydrauliques, ou tout autre lubrifiant haute performance nécessitant de combiner une fluidité et une volatilité extrêmement faibles.

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