摘要 |
FIELD: lubricant-coolant liquids. SUBSTANCE: concentrate has, wt.-%: product of interaction of oleic and boric acid with alkanolamine in mineral oil medium, 45-66; polyhydroxyethylated alkylphenol, 3-6; glycol, 7-14; and water, the balance. At preferential variant concentrate has additionally phenylcarbinol at the following ratio of components, wt.-%: interaction product, 45-66; polyhydroxyethylated alkylphenol, 3-6; phenylcarbinol, 3-6; glycol, 7-14; and water, the balance. EFFECT: enhanced biostability of composition in an aqueous medium. 2 cl, 3 tbl
|