FIELD: chemistry.
SUBSTANCE: invention relates to a method which involves at least the following steps: a) obtaining a base oil composition which optionally contains one or more additives; b) obtaining a solution of one or more alkyl-substituted quinolines or oligomer derivatives thereof in a solvent, wherein the solvent is polyglycol; and c) adding the solution obtained at step b) to the base oil composition obtained at step a), at temperature ranging from 10 to 110°C. The present invention also relates to a lubricating composition and grease.
EFFECT: improved dispersion of alkyl-substituted quinolines when producing a lubricating composition, providing an alternative method of producing a lubricating composition.
12 cl, 2 ex, 1 tbl
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