| 摘要 |
A lubricant composition comprises a lubricating vehicle and a minor proportion by weight of the reaction product of tri-ethanolamine and a monoester of the formula R-O-(CH2CH2)n-P=O(OH)2 or a diester of the formula [R-O-(CH2CH2O)n]2=P=O(OH) or a mixture of said monoester and said diester, wherein R is an organic group having at least 9 carbon atoms and n is an integer from 3 to 30. The above reaction product may be present in an amount of from 0.001 to 20% by weight of the lubricating vehicle which may be aqueous or hydrocarbon in nature. The composition may also include other conventional additives.ALSO:A complex organic phosphate ester is obtained by reacting triethanolamine with a monoester of the formula R-O-(CH2CH2O)n-P=O(OH)2 or a diester of the formula [R-O-(CH2CH2O)n]2=P=O(OH) or a mixture of said monoester and said diester, wherein R is an organic group having at least 9 carbon atoms and n is an integer from 3 to 30. The reactants may be blended at 150 DEG F. and water may be present. |
