| abstract |
(57) [Summary] [Problem] Good wastewater treatment by coagulation and sedimentation treatment, Extremely suitable as a water-soluble cutting oil, grinding oil, press oil, forging oil, rolling oil, drawing oil, polishing liquid and water / glycol hydraulic oil with low environmental pollution, excellent lubrication properties and low foaming properties Provide a lubricant. An alkyl (poly) having a cloud point of 30 ° C. or less. A polyether lubricant comprising an alkylene polyamine or an alkylene oxide adduct of a (poly) alkylene polyamine and an organic acid in a specific ratio. |