| 摘要 |
PURPOSE:To provide the subject composition having a low two layer-separating temperature to hydrogen-containing fleon compounds, a high burning resistance and good stability by comprising a high viscosity alkylbenzene, a mineral oil having specific physical properties and a polyglycol as main components. CONSTITUTION:The objective composition comprises (A) a high viscosity alkylbenzene having a kinematic viscosity of >=50cst (preferably 70-250cst) at 40 deg.C, (B) a mineral oil having a kinematic viscosity of 5-600cst (preferably 8-400cst) at 40 deg.C, a fluid point of <=-15 deg.C (especially preferably <=-30 deg.C) and an N content of <=100ppm (preferably <=30ppm) and (C) a polyglycol as main components. The components are preferably compounded in a component A : component B : component C ratio of 2-20wt.% (especially 3-15wt.%) : 2-15wt.% (especially 3-10wt.%) : 96-65wt.% (especially 94-75wt.%). |
