| 摘要 |
Metal working lubricants comprise an aqueous solution of a material produced by reacting, in the presence of water, phosphoric acid with dehydroabietylamine or ethylene oxide modified dehydroabietylamine.ALSO:The products of reacting dehydroabietylamine or ethylene oxide modified dehydroabietylamine with H3PO4 in the presence of water are described. |
