C9 Hydrocarbin Resin.used for Paints,Rubbers,printing inks,Adhesives C9 Hydrocarbon Resin 1. Product Introduction:C9 Petroleum Resin is a kind of Aromatic Hydrocarbon resin produced by C9 fraction,by products of petroleum cracking, through pretreatment, polymerization and distillation. It isn't a high polymer but a low polymer with the molecular weight between 300-3000.Featared by acid value, ...