LUBRICATING COMPOSITION AND LUBRICANT, ITS CONTENTS (VERSIONS) Russian patent published in 2008 - IPC C10M161/00 C10M125/10 C10M125/26 C10M145/22 

FIELD: chemistry.

SUBSTANCE: lubricating composition contains a synthetic lubricant in the form of liquid copolymers (C₁₄-C₁₆) alpha - olefins and alpha, beta-unsaturated 1,4-dicarboxylic acids, etherified n-butanol, having a molecular mass 600-7000, density at 20°C from 0.91 to 0.96 g/cm³ and a viscosity index from 120 to 163, and an additive - nano-particles in the form of silicon clusters or ceric oxide or titanium oxide with a specific surface of 10-100 nm in the quantity 0.1-1.5 wt %. In another version the composition contains the above mentioned liquid polyesters and an additive - nano-particles in the form of a mixture of silicon clusters and ceric oxide or silicon clusters and titanium oxide or clusters of ceric oxide and titanium oxide with a specific surface of 10-100 nm in the quantity 0.1-1.5 wt %. The correlation Si:CeO₂, or Si:TiO₂, or Si:CeO₂:TiO₂, or CeO₂:TiO₂, corresponds to 1:1, or 1:(0.5-1), 1:1, or 1:(0.5-1), or 1:(0.5-1). The lubricant contains in % of mass of phenic antioxidants or amine types or their mixture 0.5-1.0, the above-described lubricating composition 0.5-1.5, base oil is the rest.

EFFECT: improving anti-frictional and wear reducing value of lubricant.

8 cl, 2 tbl, 8 ex, 3 dwg