Propylene, other olefin polymers; n.e.c. in heading no. 3902, in primary forms

HS code 390290 covers a diverse range of propylene and other olefin polymers that are not classified elsewhere in the 3902 heading. These polymers are essential materials in the plastics and synthetic fibers industries, with applications spanning packaging, automotive parts, construction materials, and consumer goods. As a key component of the broader petrochemicals sector, the production and trade of these polymers play a significant role in the global economy.

Propylene and other olefin polymers under HS code 390290 are typically produced through a process called polymerization. This involves the chemical reaction of propylene or other olefin monomers, facilitated by catalysts, to form long-chain polymer molecules. The specific polymerization techniques used can vary, including methods such as bulk polymerization, solution polymerization, and gas-phase polymerization. The resulting polymer resins are then processed into primary forms, such as pellets, granules, or powders, for further downstream applications.

The main inputs required for the production of the polymers covered under HS code 390290 include propylene and other olefin monomers, such as ethylene, butene, and hexene. These monomers are typically derived from the refining and cracking of petroleum or natural gas. Additionally, the production process requires specialized catalysts, as well as energy sources, such as electricity or steam, and various processing equipment, including reactors, extruders, and pelletizers.

The polymers classified under HS code 390290 are used to manufacture a wide range of products, including 392010 Plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials, 392020 Plates, sheets, film, foil and strip, of plastics, cellular, 392030 Plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials, and 392190 Other plates, sheets, film, foil and strip, of plastics, n.e.c.. These polymers are also used in the production of 391510 Waste, parings and scrap, of plastics, which is then recycled or repurposed.