(Petroleum resin) Is by the petroleum decomposition system ethylene obtained by-product carbon five, carbon nine fractions, after the selective evaporation, escapes the link, escapes heavily, gets together under the acidic catalyst existence becomes. Mainly has the C5 petroleum resin, the C9 petroleum resin.

The product has the good cementation, the thermal stability, the stability, the water resistance, the acidproof alkalinity. With the phenol vinegar resin, the natural rubber, the synthetic rubber, EVA, the rosin compatibility is good, particularly with the butadiene styrene rubber (SBR), the polybutene compatibility is superior. Dissolves in the acetone, the armor second grade alkone, the ethyl acetate, the dichloroethane, the cyclo-hexane, the benzene, the toluene, the petroleum benzin and so on..