C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 109/02 (2006.01) C10M 169/04 (2006.01)
Patent
CA 2632500
The present invention provides a composition of hydraulic fluid that mainly contains alkyl benzenes. In addition to alkyl benzenes, the composition also contains an antioxidant, an antifoaming agent, a pour point dispersant, a corrosion inhibitor and a detergent-dispersant additive, an extreme pressure additive and a lubricity additive. The present invention further provides a process comprising the following steps (I) : removing of insoluble matter from the base stock, (II) tailoring the base stock by vacuum distillation and blending, (IV) removing the oxidized matters by adsorption, (V) addition of performance additives and homogenizing the mixture.. The product of this invention has utility as an general purpose hydraulic fluid.
La présente invention concerne une composition de fluide hydraulique contenant principalement des alkylbenzènes. En plus de ces alkylbenzènes, la composition contient également un antioxydant, un agent antimousse, un additif améliorant le point d'écoulement, un inhibiteur de corrosion et un additif détergent-dispersant, un additif extrême-pression et un additif à pouvoir lubrifiant. La présente invention concerne également un procédé consistant (I) à retirer une substance insoluble de l'huile de base, (II) à former un produit sur mesure par distillation sous vide et mélange, (IV) à retirer les substances oxydées par adsorption et (V) à ajouter des additifs améliorant les performances et à rendre le mélange homogène. Le produit de la présente invention peut être utilisé comme fluide hydraulique à usage général.
Gupta Ashok Kumar
Pandey Naval Kishore
Singh Arun Kumar
Council Of Scientific & Industrial Research
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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