Petroleum resins, poly(1,3-phenylene methylphosphonate), in primary forms

HS code 391120 covers petroleum resins, a class of thermoplastic polymers derived from the distillation of crude oil. These resins are widely used in a variety of industries, including adhesives, coatings, and sealants, due to their excellent adhesive properties, flexibility, and resistance to chemicals and weathering. As a key component in many industrial and consumer products, petroleum resins play a vital role in the global economy.

The production of petroleum resins typically involves the polymerization of unsaturated hydrocarbon monomers, such as styrene, terpenes, and aliphatic olefins, derived from the distillation of crude oil. The specific production process may vary, but it often includes steps like catalytic polymerization, hydrogenation, and purification to achieve the desired resin properties.

The main inputs required for the production of petroleum resins under HS code 391120 include crude oil or petroleum fractions, catalysts, and various additives or modifiers to tailor the resin's properties. Specialized equipment, such as reactors, distillation columns, and purification systems, are also essential for the manufacturing process.

Petroleum resins produced under HS code 391120 are primarily used as raw materials in the manufacture of 3506 Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg, 3208 (Paints and varnishes (including enamels and lacquers) based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium; solutions as defined in note 4 to this chapter), and 3909 Amino-resins, phenolic resins and polyurethanes, in primary forms. These resins are also used in the production of various coatings, sealants, and other specialty products.