C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 141/00 (2006.01) C10M 125/22 (2006.01) C10M 129/10 (2006.01) C10M 129/54 (2006.01) C10M 159/22 (2006.01) C10M 163/00 (2006.01) C10M 169/06 (2006.01)
Patent
CA 2418850
A grease composition comprising a base oil and a thickener, which grease additionally comprises from 0.05 % to 30 % by weight of sodium thiosulphate and at least 0.1 % by weight of one or more additives (A) selected from the group comprising calcium salicylate, magnesium salicylate, calcium phenate and/or calcium sulphonate, based on the total grease composition; use of said grease composition to improve rust prevention and abrasion resistance, and a method for preparing said grease composition.
L'invention une composition de graisse contenant une huile de base et un épaississant, laquelle graisse comprend en outre entre 0,05 et 30 % en poids de thiosulphate de sodium et au moins 0,1 % en poids d'un ou plusieurs additifs (A) choisis dans le groupe constitué de salicylate de calcium, de salicylate de magnésium, de phénate de calcium et/ou de sulfonate de calcium, en fonction du poids total de ladite composition. L'invention concerne également l'utilisation de cette composition de graisse afin d'améliorer la prévention de la rouille et la résistance à l'abrasion, ainsi qu'un procédé de préparation de cette composition.
Nakazawa Kouichi
Ozaki Takahiro
Shinoda Noriaki
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Shell Internationale Research Maatschappij B.v.
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