This product is made by catalytic polymerization or thermal polymerization processing of the by-product of petrochemical ethylene such as C9 arene, re-splitting firewood, heavy gasoline, C5 fractions etc. as raw materials. The appearance is pale yellow or brownish red color viscous liquid, transparent shiny, has a good solubility, intersolubility, water resistance, insulation, and good chemical stability for acid base. This product is soluble in benzene, toluene and xylene, solvent oil, acetone, alkanes, and other organic solvents.