Tetra-polypropylene was synthesized with maleic anhydride, distilled, hydrolyzed with water and filtered. Good oil solubility, for non-ferrous metals: steel, copper, aluminum has good rust resistance, used in the anti-rust oil, rust-proof membrane adsorption on the metal surface can be formed, prevent metal corrosion, is good for non-ferrous metal rust resistance is widely used in various types of anti-rust oil and cutting oil and turbine oil, hydraulic oil, gear oil, grease.
