| 摘要 |
PURPOSE:To obtain the subject composition preventing friction, wear and seizing in sliding part of compressor by comprising specific fluorosilicone oil and 1,1,1,2- tetrafluoroethane. CONSTITUTION:The objective composition contains a mixture of (A) fluorosilicone oil expressed by formula I or formula II [Rf is 1 to 12C perfluoroalkyl; R is alkyl or aryl (preferably lower alkyl); (m) and (n) are individually positive number] having 10 to 300cst (at 40 deg.C) viscosity and (B) 1,1,1,2- tetrafluoroethane in a weight ratio of 1/99 to 99/1 (preferably 5/95 to 60/40). |
