FUNCTIONAL FLUID COMPOSITIONS Russian patent published in 2015 - IPC C10M111/02 C10M143/00 C10N40/08 C10N40/34 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to functional fluid composition, containing: (a) from 70% to 99.99%, of weight of functional fluid composition, of basic oil composition, which contains: (i) from 50% to 95%, of weight of basic oil composition, of naphthene basic oil; (ii) from 5% to 50%, of weight of basic oil composition, of basic oil, produced in Fischer-Tropsch synthesis, with functional fluid composition having flow point, equal -30°C or lower. Claimed invention also relates to hydraulic fluid composition, to shock-absorber fluid and to application of functional fluid composition for reduction of degree of synthetic rubber swelling.

EFFECT: creation of functional fluid composition aimed at reduction of degree of synthetic rubber swelling.

10 cl, 3 ex, 11 tbl