Silicones in primary forms

HS v2017 Code: 3910

Chapter	Heading	Sub-heading
39	10	n/a

Code	3910
Version	HS v2017
Hierarchy Level	4
Datasource	WCO
Chapter	39

Ancestor Codes: Plastics and articles thereof

This Code: Silicones in primary forms

Child Codes: Silicones; in primary forms

Sibling Codes (Nearest 5): Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms; Polyamides in primary forms; Amino-resins, phenolic resins and polyurethanes, in primary forms; Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39, in primary forms; Cellulose and its chemical derivatives, n.e.c. or included, in primary forms

About silicones in primary forms

HS code 3910 covers silicones in primary forms, which are a class of synthetic polymers with a wide range of industrial and commercial applications. Silicones are known for their unique properties, such as heat resistance, water repellency, and chemical stability, making them essential materials in various sectors, including construction, automotive, electronics, and personal care products. As a key component in the global chemical industry, the silicones market plays a vital role in supporting the growth and development of numerous downstream industries.

Production process

The production of silicones in primary forms typically involves the polymerization of organosilicon monomers, such as dimethylsiloxane. This process is often carried out using a catalyst, such as an acid or base, to facilitate the formation of the siloxane backbone. The resulting polymer can then be further processed into various silicone products, including fluids, gels, resins, and elastomers, depending on the specific application requirements.

Production inputs

The main inputs required for the production of silicones in primary forms include silicon-containing raw materials, such as silicon tetrachloride or methylchlorosilanes, as well as various organic compounds, such as methanol or ethanol. Additionally, the manufacturing process may require specialized equipment, such as reactors, distillation columns, and mixing vessels, to ensure the efficient and controlled production of silicone polymers.

Production outputs

The primary outputs of HS code 3910 are silicone polymers in their basic forms, which can then be further processed and incorporated into a wide range of products. These silicone-based materials are often used as key components in the production of 3911 Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and other products specified in Note 3 to this Chapter, not elsewhere specified or included, in primary forms, 3920 Other plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials, and 3924 Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics.

Family tree for silicones in primary forms

    graph LR
    A["<a href='/classifications/hs/v2017/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/3910'>3910: Silicones in primary forms</a>"]

    A --> C["<a href='/classifications/hs/v2017/3901'>3901: Polymers of ethylene, in primary forms</a>"]
A --> D["<a href='/classifications/hs/v2017/3902'>3902: Polymers of propylene or of other olefins, in primary forms</a>"]
A --> E["<a href='/classifications/hs/v2017/3903'>3903: Polymers of styrene, in primary forms</a>"]
A --> F["<a href='/classifications/hs/v2017/3904'>3904: Polymers of vinyl chloride or of other halogenated olefins, in primary forms</a>"]
A --> G["<a href='/classifications/hs/v2017/3905'>3905: Polymers of vinyl acetate or of other vinyl esters, in primary forms; other vinyl polymers in primary forms</a>"]
A --> H["<a href='/classifications/hs/v2017/3906'>3906: Acrylic polymers in primary forms</a>"]
A --> I["<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>"]
A --> J["<a href='/classifications/hs/v2017/3908'>3908: Polyamides in primary forms</a>"]
A --> K["<a href='/classifications/hs/v2017/3909'>3909: Amino-resins, phenolic resins and polyurethanes, in primary forms</a>"]
A --> L["<a href='/classifications/hs/v2017/3911'>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/v2017/3912'>3912: Cellulose and its chemical derivatives, n.e.c. or included, in primary forms</a>"]
A --> N["<a href='/classifications/hs/v2017/3913'>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/v2017/3914'>3914: Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms</a>"]
A --> P["<a href='/classifications/hs/v2017/3915'>3915: Waste, parings and scrap, of plastics</a>"]
A --> Q["<a href='/classifications/hs/v2017/3916'>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/v2017/3917'>3917: Tubes, pipes and hoses and fittings thereof (for example, joints, elbows, flanges), of plastics</a>"]
A --> S["<a href='/classifications/hs/v2017/3918'>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/v2017/3919'>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/v2017/3920'>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/v2017/3921'>3921: Plastic plates, sheets, film, foil and strip n.e.c. in chapter 39</a>"]
A --> W["<a href='/classifications/hs/v2017/3922'>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/v2017/3923'>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/v2017/3924'>3924: Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics</a>"]
A --> Z["<a href='/classifications/hs/v2017/3925'>3925: Plastics; builders' wares n.e.c. or included</a>"]
A --> BA["<a href='/classifications/hs/v2017/3926'>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/v2017/391000'>391000: Silicones; in primary forms</a>"]


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  %% Apply classes
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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 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
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