A typical term for low molecular weight, thermoplastic hydrocarbon resins generated from fractured petroleum fractions is "petroleum resin," which has a molecular weight range of Mw 500–5,000. They should be separated from high polymers like polystyrene and polypropylene, which are manufactured mostly from pure monomers like styrene and propylene, respectively, and are classified as high polymers. Petroleum Resins Market are literally thousands of uses for petroleum resin, which typically has a tackifying effect and is appropriate for use in paints and varnishes, coatings, printing ink, lithographic inks, paper, adhesives, rubber, concrete-curing compounds, and other areas where tackiness is required.
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