| 摘要 |
PURPOSE:An inhibitor for metal corrosion, useful for a heat-resistant lubricating oil, comprising a benzotriazole or a 2,5-dialkyldithio.thiadiazole and a specific organotin compound as active ingredients. CONSTITUTION:The desired inhibitor for metal corrosion comprising (A) a benzotriazole and/or 3-18C 2,5-dialkyldithio.thiadiazole, and (B) organotin compound(e.g., di-butyltin-di-laurate, etc.) shown by the formula(R and R' are 1- 18C alkyl; R'' and R''' are 3-22C carboxyl, maleate, or 3-18C maleate monoester, 1-18C mercapto, 3-18C mercaptoacetic ester, or 1-18C alkoxy) as active ingredients. A blending ratio of the component A to B is preferably 100:(10- 1,000) by weight. |
