| 摘要 |
PURPOSE:To provide a lubricating oil which stably works irrespective of high temp. or heavy load and is excellent in friction decreasing effect and which comprises a fluid fat and, dispersed therein, fine boron nitride and polyether- ether-ketone particles. CONSTITUTION:Fine boron nitride particles (A) having an average particle diameter of up to 20mum and fine polyether-ether-ketone particles having an average particle diameter of up to 20mum are dispersed in a fluid fat, so that the wt. ratio of component (A) to component (B) is in the range of 40:1-1:20 and that the total of both components is in the range of 0.001-50wt%. |
