Polymers of styrene, in primary forms

HS v2022 Code: 3903

About polymers of styrene, in primary forms

HS code 3903 covers the production and trade of polymers of styrene, a versatile class of thermoplastic materials with a wide range of applications. Styrene polymers are essential components in the manufacturing of various consumer and industrial products, making this industry a crucial part of the global economy. These materials are valued for their durability, insulation properties, and ability to be easily molded into complex shapes.

Production process

The primary production techniques for polymers of styrene involve polymerization processes, such as bulk polymerization, suspension polymerization, and emulsion polymerization. These methods convert the styrene monomer into long-chain polymer molecules, which are then processed into primary forms like pellets, granules, or powders for further downstream applications.

Production inputs

The main inputs required for the production of polymers of styrene include the styrene monomer, which is typically derived from petroleum or natural gas sources. Additionally, the industry relies on various catalysts, initiators, and other chemical additives to control the polymerization process and achieve the desired polymer properties. Specialized manufacturing equipment, such as reactors, extruders, and molding machines, are also essential inputs for this industry.

Production outputs

The primary outputs of the polymers of styrene industry are a diverse range of thermoplastic materials, including 3903 Polymers of styrene, in primary forms, 3904 Polymers of vinyl chloride or of other halogenated olefins, in primary forms, and 3905 Polymers of vinyl acetate or of other vinyl esters, in primary forms. These materials are widely used in the production of packaging, construction materials, automotive components, household appliances, and a variety of other consumer and industrial products.

Family tree for polymers of styrene, in primary forms

    graph LR
    A["<a href='/classifications/hs/v2022/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/3903'>3903: Polymers of styrene, in primary forms</a>"]

    A --> C["<a href='/classifications/hs/v2022/3901'>3901: Polymers of ethylene, in primary forms</a>"]
A --> D["<a href='/classifications/hs/v2022/3902'>3902: Polymers of propylene or of other olefins, in primary forms</a>"]
A --> E["<a href='/classifications/hs/v2022/3904'>3904: Polymers of vinyl chloride or of other halogenated olefins, in primary forms</a>"]
A --> F["<a href='/classifications/hs/v2022/3905'>3905: Polymers of vinyl acetate or of other vinyl esters, in primary forms; other vinyl polymers in primary forms</a>"]
A --> G["<a href='/classifications/hs/v2022/3906'>3906: Acrylic polymers in primary forms</a>"]
A --> H["<a href='/classifications/hs/v2022/3907'>3907: Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms</a>"]
A --> I["<a href='/classifications/hs/v2022/3908'>3908: Polyamides in primary forms</a>"]
A --> J["<a href='/classifications/hs/v2022/3909'>3909: Amino-resins, phenolic resins and polyurethanes, in primary forms</a>"]
A --> K["<a href='/classifications/hs/v2022/3910'>3910: Silicones in primary forms</a>"]
A --> L["<a href='/classifications/hs/v2022/3911'>3911: Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39, in primary forms</a>"]
A --> M["<a href='/classifications/hs/v2022/3912'>3912: Cellulose and its chemical derivatives, n.e.c. or included, in primary forms</a>"]
A --> N["<a href='/classifications/hs/v2022/3913'>3913: Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms</a>"]
A --> O["<a href='/classifications/hs/v2022/3914'>3914: Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms</a>"]
A --> P["<a href='/classifications/hs/v2022/3915'>3915: Waste, parings and scrap, of plastics</a>"]
A --> Q["<a href='/classifications/hs/v2022/3916'>3916: Monofilament of which any cross-sectional dimension exceeds 1mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics</a>"]
A --> R["<a href='/classifications/hs/v2022/3917'>3917: Tubes, pipes and hoses and fittings thereof (for example, joints, elbows, flanges), of plastics</a>"]
A --> S["<a href='/classifications/hs/v2022/3918'>3918: Floor coverings of plastics, self-adhesive or not, in rolls or tiles; wall or ceiling coverings of plastics, in rolls of a width not less than 45cm</a>"]
A --> T["<a href='/classifications/hs/v2022/3919'>3919: Self-adhesive plates, sheets, film, foil, tape, strip and other flat shapes, of plastics, whether or not in rolls</a>"]
A --> U["<a href='/classifications/hs/v2022/3920'>3920: Plastics; plates, sheets, film, foil and strip (not self-adhesive); non-cellular and not reinforced, laminated, supported or similarly combined with other materials, n.e.c. in chapter 39</a>"]
A --> V["<a href='/classifications/hs/v2022/3921'>3921: Plastic plates, sheets, film, foil and strip n.e.c. in chapter 39</a>"]
A --> W["<a href='/classifications/hs/v2022/3922'>3922: Sanitary ware; baths, shower-baths, sinks, wash-basins, bidets, lavatory pans, seats and covers, flushing cisterns and sanitary ware, of plastics</a>"]
A --> X["<a href='/classifications/hs/v2022/3923'>3923: Plastic articles for the conveyance or packing of goods; stoppers, lids, caps and other closures of plastics</a>"]
A --> Y["<a href='/classifications/hs/v2022/3924'>3924: Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics</a>"]
A --> Z["<a href='/classifications/hs/v2022/3925'>3925: Plastics; builders' wares n.e.c. or included</a>"]
A --> BA["<a href='/classifications/hs/v2022/3926'>3926: Articles of plastics and articles of other materials of heading no. 3901 to 3914, n.e.c. in chapter 39</a>"]

    B --> BB["<a href='/classifications/hs/v2022/390311'>390311: Styrene polymers; expansible polystyrene, in primary forms</a>"]
B --> BC["<a href='/classifications/hs/v2022/390319'>390319: Styrene polymers; (other than expansible polystyrene), in primary forms</a>"]
B --> BD["<a href='/classifications/hs/v2022/390320'>390320: Styrene polymers; styrene-acrylonitrile (SAN) copolymers, in primary forms</a>"]
B --> BE["<a href='/classifications/hs/v2022/390330'>390330: Styrene polymers; acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms</a>"]
B --> BF["<a href='/classifications/hs/v2022/390390'>390390: Styrene polymers; in primary forms, n.e.c. in heading no. 3903</a>"]


    %% Color coordination by level

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    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB level6
class BC level6
class BD level6
class BE level6
class BF level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight