Phenolic resins; in primary forms

HS v2017 Code: 390940

About phenolic resins; in primary forms

HS code 390940 covers the classification of phenolic resins in their primary forms. Phenolic resins are a class of thermosetting polymers that are widely used in a variety of industries due to their excellent thermal and chemical resistance, as well as their ability to be molded into complex shapes. These resins play a crucial role in the production of a wide range of products, from construction materials to automotive components, making them an important part of the global economy.

Production process

Phenolic resins are typically produced through the condensation reaction between phenol and formaldehyde. This process involves the initial formation of a phenol-formaldehyde prepolymer, which is then further polymerized and cured to create the final resin product. The specific production techniques can vary depending on the desired properties of the resin, such as its viscosity, curing time, and thermal stability.

Production inputs

The main inputs required for the production of phenolic resins include phenol, formaldehyde, and various catalysts and additives. Phenol is the primary raw material, while formaldehyde acts as the crosslinking agent. Catalysts, such as acids or bases, are used to control the rate and extent of the polymerization reaction. Additional inputs may include fillers, reinforcing agents, and other modifiers to enhance the resin's performance characteristics.

Production outputs

Phenolic resins produced under HS code 390940 are used in a wide range of applications, including the manufacture of 392010 Phenolic resins, 392020 Amino-resins, and 392030 Amino-resins. These resins are also used in the production of 441510 Wooden frames for paintings, photographs, mirrors or similar objects, 441520 Wooden frames for paintings, photographs, mirrors or similar objects, and 441900 Builders' joinery and carpentry of wood, including cellular wood panels, assembled flooring panels, shingles and shakes.

Revisions to 390940

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 390940. The most recent 1 version of this code (390940) is in the HS v2022 system:

This page shows a legacy version of code 390940 ( HS v2017).

Newer versions
Older versions

Family tree for phenolic resins; in primary forms

    graph LR
    A["<a href='/classifications/hs/v2017/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/3909'>3909: Amino-resins, phenolic resins and polyurethanes, in primary forms</a>"]
B --> C["<a href='/classifications/hs/v2017/390940'>390940: Phenolic resins; in primary forms</a>"]

    B --> D["<a href='/classifications/hs/v2017/390910'>390910: Amino-resins; urea and thiourea resins, in primary forms</a>"]
B --> E["<a href='/classifications/hs/v2017/390920'>390920: Amino-resins; melamine resins, in primary forms</a>"]
B --> F["<a href='/classifications/hs/v2017/390931'>390931: Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)</a>"]
B --> G["<a href='/classifications/hs/v2017/390939'>390939: Amino-resins; n.e.c. in heading no. 3909, in primary forms, other than poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)</a>"]
B --> H["<a href='/classifications/hs/v2017/390950'>390950: Polyurethanes; in primary forms</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    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 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