| abstract |
The present invention provides a water-soluble lubricant which has good wastewater treatment properties by coagulation sedimentation treatment, has low environmental pollution, has excellent lubricating properties, and has low foamability. A polyether (E) represented by the following general formula (1) and having a weight average molecular weight of 1,000 to 50,000, and 2 to 550 parts by weight of an organic compound per 100 parts by weight of (E). A polyether-based lubricant comprising an acid (F). [A 1 represents an alkylene group having 2 to 18 carbon atoms, r represents an integer of 1 to 10, m, n, p, and q represent an integer of 1 to 20, and X is represented by the formula-(A-O) yH. A is a group, A represents an alkylene group having 2 to 4 carbon atoms, y represents an integer of 4 to 1,000, and a plurality of X, A and y may be the same or different. ] [Selection diagram] None |