产品通用描述： Petroleum resin is a kind of a thermal plastic resin produced by C5,C9 fraction, by-products of petroleum cracking, through pretreatment, polymerization and distillation. It is not a high polymer but a low polymer with the molecular weight between 300-3000,featured by acid value ,easy mutual solubilities , resistant to water,resistant to ethanol and chemicals. It has the chemical stabilizing property to acid alkaline ,viscosity and thermal
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