FIELD: chemistry.
SUBSTANCE: invention relates to microcapsules, containing borates of alkali metals, method of their obtaining, as well as to lubricating oils, used as transmission lubricating materials, containing said microcapsules as anti-scuffing and/or anti-wear additives. Microcapsules include core, containing one or more of borates of alkali metals, possibly hydrated, dispersed in one or more basic lubricating oils of mineral, synthetic or natural origin, and polymer envelope. Microcapsules are obtained by method of on-surface polymerisation.
EFFECT: invention makes it possible to obtain microcapsules, containing borates of alkali metals, which make it possible to avoid phenomenon of crystallisation of borates of alkali metals in presence of water, and therefore, makes it possible to use lubricating composition, containing thereof, use, for instance, in gearbox, which does not have sealing system.
24 cl, 1 tbl, 3 ex
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