ANTIFRICTION MODIFYING COMPOSITION EMULSIFIED IN LUBRICANT MEDIA FOR CONTACTING SURFACES Russian patent published in 1995 - IPC

FIELD: antifriction coatings. SUBSTANCE: antifriction modifying composition has, mas. p.: perfluoropolypropylene oxide with content of fluoride ion 0.0003-0.005 mg/g polymer and mol. mass 1200-15000 30-100; compound of ethylene glycol 10-15; hydrocarbon oil 30-50, and corrosion inhibitor 2.7-15. Source of corrosion inhibitor: triethanolamine or quaternary ammonium salt of dimethylpropanediamine and perfluoro-n-alkanemonocarboxylic acid, or perfluorooxy-i-alkanemonocarboxylic acid with carbon atom content from C₅ to C₁₈ of the general formula where R_F - perfluoro-n-alkyl or perfluorooxy-i-alkyl with content of carbon atom from C₅ to C₁₈; Q - CONH-, or a mixture of indicated quaternary ammonium salts. Composition can contain additionally ultradispersed powder of metal oxide or metal of III-VIII group of periodic law at concentration 1-20 mas. p. Friction coefficient with steel in the case of engine oil M-5₃/1-Г₁ as lubricant medium with antifriction composition emulsified on it is 0.13-0.16, wear of contacting surfaces is 0.03-0.06 mm, safe critical loading is 1.80-2.00 H; working capability of oil film is 11.6-13.7 h. EFFECT: enhanced effectiveness of composition. 2 cl, 2 tbl