Rubber; synthetic, isobutene-isoprene (butyl) rubber (IIR), in primary forms or in plates, sheets or strip

HS v2017 Code: 400231

About rubber; synthetic, isobutene-isoprene (butyl) rubber (iir), in primary forms or in plates, sheets or strip

HS code 400231 covers the classification of synthetic isobutene-isoprene (butyl) rubber, a versatile and widely used material in various industries. Butyl rubber is known for its exceptional air-tightness, resistance to weathering, and low permeability to gases, making it a crucial component in the production of tires, inner tubes, and other rubber-based products. This industry plays a vital role in the broader economy, supporting the automotive, construction, and manufacturing sectors, among others.

Production process

The production of synthetic isobutene-isoprene (butyl) rubber typically involves a polymerization process. The main raw materials, isobutylene and isoprene, are combined and polymerized under controlled temperature and pressure conditions. The resulting polymer is then further processed, often through techniques such as compounding, vulcanization, and extrusion, to create the desired primary forms or shapes, such as plates, sheets, or strips.

Production inputs

The primary inputs for the production of HS code 400231 products include the raw materials isobutylene and isoprene, as well as various additives and processing aids. Specialized machinery, such as polymerization reactors, extruders, and vulcanization equipment, are also essential for the manufacturing process. Additionally, energy sources, such as electricity and steam, are required to power the production facilities.

Production outputs

The main outputs of the industry covered by HS code 400231 are synthetic isobutene-isoprene (butyl) rubber in various primary forms, including plates, sheets, and strips. These products are then consumed by a range of downstream industries, such as the 401120 (Rubber; new pneumatic tyres, of a kind used on motor cars (including station wagons and racing cars)) and 401211 (Rubber; inner tubes, of a kind used on motor cars (including station wagons and racing cars), bicycles or motorcycles) industries, as well as the 401700 Rubber; articles thereof, n.e.c. in chapter 40 industry, which encompasses a wide variety of rubber-based products.

Revisions to 400231

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 400231. The most recent 1 version of this code (400231) is in the HS v2022 system:

This page shows a legacy version of code 400231 ( HS v2017).

Family tree for rubber; synthetic, isobutene-isoprene (butyl) rubber (iir), in primary forms or in plates, sheets or strip

    graph LR
    A["<a href='/classifications/hs/v2017/40'>40: Rubber and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/4002'>4002: Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of heading no. 4001 and 4002, in primary forms or in plates, sheets or strip</a>"]
B --> C["<a href='/classifications/hs/v2017/400231'>400231: Rubber; synthetic, isobutene-isoprene (butyl) rubber (IIR), in primary forms or in plates, sheets or strip</a>"]

    B --> D["<a href='/classifications/hs/v2017/400211'>400211: Rubber; synthetic, styrene-butadiene rubber (SBR) and carboxylated styrene-butadiene rubber (XSBR) latex, in primary forms or in plates, sheets or strip</a>"]
B --> E["<a href='/classifications/hs/v2017/400219'>400219: Rubber; synthetic, styrene-butadiene rubber (SBR) and carboxylated styrene-butadiene rubber (XSBR), (other than latex), in primary forms or in plates, sheets or strip</a>"]
B --> F["<a href='/classifications/hs/v2017/400220'>400220: Rubber; synthetic, butadiene rubber (BR), in primary forms or in plates, sheets or strip</a>"]
B --> G["<a href='/classifications/hs/v2017/400239'>400239: Rubber; synthetic, halo-isobutene-isoprene rubber (CIIR or BIIR), in primary forms or in plates, sheets or strip</a>"]
B --> H["<a href='/classifications/hs/v2017/400241'>400241: Rubber; synthetic, chloroprene (chlorobutadiene) rubber (CR), latex, in primary forms or in plates, sheets or strip</a>"]
B --> I["<a href='/classifications/hs/v2017/400249'>400249: Rubber; synthetic, chloroprene (chlorobutadiene) rubber (CR), (other than latex), in primary forms or in plates, sheets or strip</a>"]
B --> J["<a href='/classifications/hs/v2017/400251'>400251: Rubber; synthetic, acrylonitrile-butadiene rubber (NBR), latex, in primary forms or in plates, sheets or strip</a>"]
B --> K["<a href='/classifications/hs/v2017/400259'>400259: Rubber; synthetic, acrylonitrile-butadiene rubber (NBR), (other than latex), in primary forms or in plates, sheets or strip</a>"]
B --> L["<a href='/classifications/hs/v2017/400260'>400260: Rubber; synthetic, isoprene rubber (IR), in primary forms or in plates, sheets or strip</a>"]
B --> M["<a href='/classifications/hs/v2017/400270'>400270: Rubber; synthetic, ethylene-propylene-non-conjugated diene rubber (EPDM), in primary forms or in plates, sheets or strip</a>"]
B --> N["<a href='/classifications/hs/v2017/400280'>400280: Rubber; mixtures of natural and synthetic rubbers of heading no. 4001 and 4002, in primary forms or in plates, sheets or strip</a>"]
B --> O["<a href='/classifications/hs/v2017/400291'>400291: Rubber; synthetic, n.e.c. in heading 4002, latex, in primary forms or in plates, sheets or strip</a>"]
B --> P["<a href='/classifications/hs/v2017/400299'>400299: Rubber; synthetic, n.e.c. in heading 4002, (other than latex), in primary forms or in plates, sheets or strip</a>"]

    

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