ANTIFREEZE Russian patent published in 1999 - IPC

FIELD: internal combustion engines and heat exchangers. SUBSTANCE: antifreezes comprises ethylene glycol, water and sodium hydrophosphate and further comprises alkamon of general formula: [C_10-18H_21-37OCH₂N(C₂H₅)₂CH₃]SO₄CH₃, the ratio of components being as follows (wt %): 6.6 ethylene glycol; 0.3 sodium hydrophosphate; 1.5 alkamon; and the water balance. EFFECT: higher corrosion protection of ferrous and nonferrous metals induced by the antifreeze. 1 tbl