Polyethers; in primary forms, excluding polyacetals

HS v2017 Code: 390720

About polyethers; in primary forms, excluding polyacetals

HS code 390720 covers polyethers, a versatile class of polymers that find widespread application across various industries. Polyethers are known for their exceptional thermal and chemical resistance, making them invaluable in applications ranging from automotive components to medical devices. This industry plays a crucial role in the global economy, providing essential materials for the production of a wide array of consumer and industrial goods.

Production process

The production of polyethers typically involves the polymerization of epoxides, such as ethylene oxide or propylene oxide, using various catalysts and initiators. The specific techniques employed can vary depending on the desired molecular weight, branching, and other properties of the final product. Continuous polymerization processes, as well as batch reactions, are commonly used in the manufacture of polyethers.

Production inputs

The primary inputs for the polyether industry include petrochemical feedstocks, such as ethylene and propylene, as well as various catalysts and additives. Specialized equipment, such as reactors, distillation columns, and extrusion systems, are also essential for the efficient production of polyethers. The industry relies on a robust supply chain of raw materials and technological advancements to maintain its competitiveness.

Production outputs

Polyethers produced under HS code 390720 find applications in a diverse range of industries. They are used in the manufacture of 390810 polyacetals, 390720 polyethylene glycols, and other specialty polymers. Polyethers are also utilized in the production of 401700 rubber products, 300510 pharmaceutical preparations, and 852990 electronic components, among other applications. The versatility of polyethers ensures a steady demand from various downstream sectors, contributing to the overall growth and importance of this industry.

Revisions to 390720

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 390720. The most recent 2 versions of this code (390720) is in the HS v2022 system:

This page shows a legacy version of code 390720 ( HS v2017).

Older versions

Family tree for polyethers; in primary forms, excluding polyacetals

    graph LR
    A["<a href='/classifications/hs/v2017/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/3907'>3907: Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms</a>"]
B --> C["<a href='/classifications/hs/v2017/390720'>390720: Polyethers; in primary forms, excluding polyacetals</a>"]

    B --> D["<a href='/classifications/hs/v2017/390710'>390710: Polyacetals; in primary forms</a>"]
B --> E["<a href='/classifications/hs/v2017/390730'>390730: Epoxide resins; in primary forms</a>"]
B --> F["<a href='/classifications/hs/v2017/390740'>390740: Polycarbonates; in primary forms</a>"]
B --> G["<a href='/classifications/hs/v2017/390750'>390750: Alkyd resins; in primary forms</a>"]
B --> H["<a href='/classifications/hs/v2017/390761'>390761: Poly(ethylene terephthalate); in primary forms, having a viscosity of 78ml/g or higher</a>"]
B --> I["<a href='/classifications/hs/v2017/390769'>390769: Poly(ethylene terephthalate); in primary forms, having a viscosity of less than 78ml/g</a>"]
B --> J["<a href='/classifications/hs/v2017/390770'>390770: Poly(lactic acid); in primary forms</a>"]
B --> K["<a href='/classifications/hs/v2017/390791'>390791: Polyesters; n.e.c. in heading no. 3907, unsaturated, in primary forms</a>"]
B --> L["<a href='/classifications/hs/v2017/390799'>390799: Polyesters; n.e.c. in heading no. 3907, saturated, in primary forms</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 level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6

  class C 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 C highlight