| 摘要 |
<p>A high water based hydraulic fluid having about 95% water and a concentrate comprising a zincdihydrocarbyldithiophosphate, the reaction product of an alkanolamine, preferably triethanolamine, and a phosphate ester acid of the general formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="13" wi="40" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where R<Sup>4</Sup> is hydrocarbyl, R<Sup>6</Sup> is alkyl, each n is independently 1 or 2 and x is between 1 and 20, and optionally a polyalkylene glycol of molecular weight between 1000 and 100000.</p><p>A method of preparing a concentrate is also disclosed.</p> |
