C9 Petroleum Resin used in Paint,Ink, Rubber,Tyre and Hot Melt Adhesive,etc.... C9 petroleum resin is a petroleum by-product of pyrolysis C9 fraction which is produced by pre-treatment, polymerization and distillation processes. It is not a high polymer but a low polymer molecular weight between 300-3000. It has the characteristics of low acid value, good miscibility, water,ethanol and chemical ...