| 摘要 |
<p>A hydraulic fluid comprising at least one polyethoxylated fatty amino carboxylate zwitterion. Preferred compositions contain polyethoxylated fatty amines and faty amino carboxylates. Fatty acid quarternary ammonium salt-based biocides, polyethoxylated fatty amino corrosion inhibitors, polyhydroxy alcohol, freezing-point depressants and dispersants may be included. Concentrates of the compositions and their method of preparation are disclosed.</p> |
