Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)

HS v2017 Code: 390931

About amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (crude mdi, polymeric mdi)

HS code 390931 covers a category of synthetic resins known as amino-resins, specifically poly(methylene phenyl isocyanate), also referred to as Crude MDI or polymeric MDI. These materials are widely used in the production of polyurethane foams, coatings, and adhesives, making them an essential component in various industries, including construction, automotive, and furniture manufacturing.

Production process

Amino-resins under HS code 390931 are typically produced through a polymerization process. The key steps involve the reaction of methylene diphenyl diisocyanate (MDI) with other compounds, such as phenols or amines, to form the desired amino-resin polymer. The specific production techniques may vary depending on the desired properties and applications of the final product.

Production inputs

The main inputs required for the production of amino-resins under HS code 390931 include methylene diphenyl diisocyanate (MDI) as the primary raw material, as well as various other chemicals and catalysts depending on the specific formulation. Additionally, specialized production equipment, such as reactors, mixing tanks, and extrusion or molding machines, are necessary to facilitate the polymerization and shaping of the final product.

Production outputs

The primary output of HS code 390931 is the amino-resin polymer, which can be further processed and used in the manufacture of a wide range of products. These include 392010 Polymers of ethylene, in primary forms, 392020 Polymers of propylene or of other olefins, in primary forms, and 392030 Polymers of styrene, in primary forms, among others. The amino-resins produced under this code are essential for the production of polyurethane foams, coatings, adhesives, and various other applications.

Revisions to 390931

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 390931. The most recent 1 version of this code (390931) is in the HS v2022 system:

This page shows a legacy version of code 390931 ( HS v2017).

Older versions

Family tree for amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (crude mdi, polymeric mdi)

    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/v2017/390931'>390931: Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)</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/v2017/390939'>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 --> G["<a href='/classifications/hs/v2017/390940'>390940: Phenolic resins; in primary forms</a>"]
B --> H["<a href='/classifications/hs/v2017/390950'>390950: Polyurethanes; in primary forms</a>"]

    

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