C5 hydrocarbon resin, C9 hydrocarbon resin, and C5/C9 hydrocarbon resin can be regarded as the byproducts of hydrocarbon resin actually. C5 resin can be widely used in the ink industry since it can be used as the ideal choice to improve printing performance and reach the effect of quick-drying. It is synthesized by the polymerization of unsaturated compounds like n-pentane and isopentane. It also can be used as high temperature cooking bags and pacing materials of medical equipment to prevent the peculiar smell diffusing since it has good moisture and water resistance and stable chemical properties.

C9 hydrocarbon resin is a product of pyrolysis C9 fraction and it is a polymer with low molecular weight between 300-3000. It can be used in paint industry as high softener to increase the gloss of paint and improve adhesion, hardness and resistance ability because of its low acid value and some other good chemical properties. C9 hydrocarbon also can improve the adhesive bond strength, acid and alkali resistance, and water resistance. It also can help reduce production costs effectively.

C5/C9 copolymer, as its name implies, it has the advantages of both C5 copolymer and C9 copolymer. This kind of product can be used in hot melt adhesives for many of its features or advantages. In general, it has low acid value, good miscibility and excellent water repellency. It will not dissolve in any organic solven at room temperature because of the chemical structure of the C5/C9 copolymer. You also can use the C5/C9 copolymer to adjust and improve the viscosity, durability and strength of the mixture with other glues and resins.

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