摘要 |
PURPOSE:To provide the titled rolling oil compsn. consisting of a specified mixed soap, hydroxycarboxylic aicd salt, ether type nonionic surfactant and water, which prevents oil stain and has an excellent rust-preventive property and detergency and an optimum friction coefficient. CONSTITUTION:The rolling oil compsn. is prepd. by blending (A) 15.5-75wt% mixed salt obtained by interaction of 5-20wt% nitro group-substituted compd. of benzoic acid (e.g. O-nitrobenzoic acid), 0.5-5wt% 4-12C aliphatic dibasic acid (e.g. adipic acid), 0-10wt% 6-12C aliphatic monocarboxylic acid (e.g. caproic acid) and 5-20wt% primary alkanolamine (e.g. diethanolamine), (B) 0.5- 5wt% hydroxycarboxylic acid salt (e.g. sodium gluconate), (C) 0.1-3wt% ether type noionic surfactant (e.g. polyoxyethylene nonylphenyl ether) and (D) water. |