| 摘要 |
PURPOSE:To provide the titled fluid which causes little loss of stirring in a speed regulator and exhibits high power transmission, by using a specified naphthenic hydrocarbon together with a specified diluent. CONSTITUTION:The titled fluid consists of at least one compd. (A) selected from among 18C or higher naphthenic hydrocarbons contg. structural nucleus of formula I , II, III, IV, V, VI or VII (wherein R, R' are a bivalent 1-6C hydrocarbon group) [e.g. 1,1'-bisdecalin, 1,1-didecalylethane, or bis-(1-cyclohexylethyl)dimethylcyclohexane] and a branched 6-12C alkylbenzene (B) (e.g. isohexylbenzene or isododecylbenzene) as a diluent. By using the compd. B as a diluent, the viscosity of the fluid can be lowered while retaining a high coefficient of traction inherent to the compd. A. Hence, stirring loss is small and power transmission is high. Accordingly, the fluid can be effectively used in speed regulators for automobile and industrial machines. |
