HYDRAULIC LIQUID Russian patent published in 1997 - IPC

FIELD: chemical technology. SUBSTANCE: proposed liquid contains 15-35 mass % of glycol, 37-42 mass % of water, 0.58-0.63 mass % of sodium hydroxide, 0.045-0.055 mass % of 2-mercaptobenzthiazole, 0.75-0.85 mass % of oleic acid, 3.3-3.8 mass % of morpholine, 4.8-5.3 mass % of butyl cellosolve, 1.32-1.8 mass % of cyclohexanol, 1.6-1.8 mass % of benzoic acid, 0.01-0.1 mass % of foam-quenching agent, 0.0025-0.0035 mass % of dye and stiffener the rest. Water soluble copolymer of ethylene oxide and propylene oxide having molecular weight 600-10000 is used as mentioned above stiffener. EFFECT: improved quality of desired product. 2 tbl