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Chapter 3907 — Customs Tariff Headings

Products classified under Tariff item 39.07

3907.10.00

Acetal 90% Pure Polymer Pellets

Acetal 90% Pure Polymer Pellets are polyacetal resin pellets containing 90% acetal monomer units. They are classified under tariff item 3907.10.00 as polyacetals in primary forms, as the acetal units predominate over any other comonomer units.

3907.10.00

Acetal Resin POM 500P Grade Pellets

Acetal Resin POM 500P Grade Pellets are standard-grade polyoxymethylene homopolymer acetal resin pellets used for high-precision injection molding. They meet the 95% monomer purity requirement for polyacetals under subheading note (a)(1) and are in primary form as pellets.

3907.10.00

Celcon Polyacetal Copolymer Pellets

Celcon Polyacetal Copolymer Pellets are a commercial polyacetal copolymer resin designed for acetal applications. They are classified as polyacetals under 3907.10.00 because acetal units predominate over other comonomers, per subheading note (a)(4), and are supplied in primary form as granules.

3907.10.00

Delrin 150NC010 Polyacetal Homopolymer

Delrin 150NC010 Polyacetal Homopolymer is DuPont's low-viscosity polyacetal homopolymer for general-purpose extrusion and molding. It has greater than 95% polyoxymethylene content and is supplied in primary form as natural color pellets, meeting the requirements for tariff item 3907.10.00.

3907.10.00

Duracon M270-44 Impact Polyacetal

Duracon M270-44 Impact Polyacetal is a super-high impact polyacetal copolymer from Polyplastics. It is classified under 3907.10.00 as a polyacetal in primary form, with acetal units predominating over other comonomers, and is supplied as pellets.

3907.10.00

Engineering Polyacetal H-POM Pellets

Engineering Polyacetal H-POM Pellets are high-stiffness homopolymer pellets for structural parts. They are classified under 3907.10.00 as polyacetals in primary forms, with the acetal monomer units contributing over 95% by weight.

3907.10.00

Hostaform C 9021 LD Polyacetal Copolymer

Hostaform C 9021 LD Polyacetal Copolymer is a low-density polyacetal copolymer from Celanese used for precision gears. It is classified under 3907.10.00 as a polyacetal in primary form, with acetal units predominating over other comonomers.

3907.10.00

Kocetal Polyacetal Engineering Pellets

Kocetal Polyacetal Engineering Pellets are Korean POM homopolymer pellets for high-performance engineering uses. They are classified under 3907.10.00 as polyacetals in primary forms, with the acetal monomer units contributing over 95% by weight.

3907.10.00

Polyacetal Molding Grade Pellets

Polyacetal Molding Grade Pellets are generic high-flow polyacetal pellets for consumer electronics molding. They are classified under 3907.10.00 as polyacetals in primary forms, with acetal units predominating over any other comonomer units.

3907.10.00

Polyoxymethylene Homopolymer Resin

Polyoxymethylene Homopolymer Resin is a high-molecular-weight polyacetal where the acetal monomer units contribute over 95% by weight, meeting subheading note (a)(1). It is supplied in primary form as pellets and classified under 3907.10.00.

3907.10.00

POM Extrusion Grade Polyacetal Resin

POM Extrusion Grade Polyacetal Resin is an extrusion-grade POM homopolymer for pipes and profiles. It is classified under 3907.10.00 as a polyacetal in primary form, with acetal monomer units contributing over 95% by weight.

3907.10.00

POM M90 Impact Modified Polyacetal

POM M90 Impact Modified Polyacetal is an impact-modified polyacetal resin, still classified under polyacetals if modification does not alter the base polymer per note (a)(3). It is supplied as pellets for tough parts and classified under 3907.10.00.

3907.10.00

Sustaina Polyacetal Copolymer Granules

Sustaina Polyacetal Copolymer Granules offer improved chemical resistance and are classified as polyacetals where acetal predominates. They are in primary form as granules for engineering plastics applications and classified under 3907.10.00.

3907.10.00

Ticona Celcon acetal Copolymer

Ticona Celcon acetal Copolymer is a high-performance acetal copolymer resin. It is classified under 3907.10.00 as a polyacetal in primary form, with acetal units predominating over other comonomers, and is supplied as pellets.

3907.10.00

Ultraform POM Homopolymer N2320 003

Ultraform POM Homopolymer N2320 003 is a BASF natural POM homopolymer for injection molding. It is classified under 3907.10.00 as a polyacetal in primary form, with acetal monomer units contributing over 95% by weight.

3907.21.00

Antiblaze 182 Flame Retardant

Antiblaze 182 is a flame retardant consisting of bis(polyoxyethylene) methylphosphonate in primary form, used for textile and paper coatings. Its chemical composition matches the tariff item's precise specification, and it is not excluded by Chapter 39 notes.

3907.21.00

Bis(polyoxyethylene) methylphosphonate (BPEMP)

Bis(polyoxyethylene) methylphosphonate (BPEMP) is a polyether compound in primary form, used as a flame retardant. Its chemical structure as a phosphonate ester of polyoxyethylene chains directly matches the tariff item's description.

3907.21.00

Phosflex 71B Flame Retardant

Phosflex 71B is a commercial grade of bis(polyoxyethylene) methylphosphonate used as a low-viscosity reactive flame retardant. It matches the tariff item's chemical description and is presented in primary form.

3907.21.00

TEP-Enhanced BPEMP Polyether

TEP-Enhanced BPEMP Polyether is a triethyl phosphate-modified bis(polyoxyethylene) methylphosphonate formulation with over 95% named polymer content. It qualifies under the tariff item as the core monomer units predominate, per subheading note 1(a)(1).

3907.29.00

Polybutylene Ether Pellets

Polybutylene ether pellets are aliphatic polyethers derived from 1,4-butanediol, presented in primary form as pellets. They consist of repeating ether linkages with over 95% polyether content by weight, classifying them under tariff item 3907.29.00 as other polyethers. These pellets are commonly used as intermediates in hot-melt adhesives and flexible packaging applications.

3907.29.00

Polyether Block Amide Pellets

Polyether block amide (PEBA) pellets are thermoplastic elastomers in primary granular form, composed of polyether and polyamide segments. The polyether segments contribute over 95% by weight to the polymer chain, satisfying the classification criteria for other polyethers under tariff item 3907.29.00. These pellets are used in applications requiring flexibility and impact resistance, such as sports footwear and medical tubing.

3907.29.00

Polyetherimide Resin Granules

Polyetherimide (PEI) resin granules, such as Ultem, are high-performance aromatic polyethers in primary form. Their imide-ether structure qualifies them as 'other polyethers' under tariff item 3907.29.00, as the polyether monomer content meets the 95% threshold. These granules are used in aerospace, automotive, and high-temperature electrical applications.

3907.29.00

Polyoxypropylene Glycol Industrial Grade

Polyoxypropylene glycol (PPG) is an industrial-grade liquid polyether in primary form, with propylene oxide-derived ether linkages comprising over 95% by weight. It is classified under tariff item 3907.29.00 as other polyethers, given its polyether structure and primary liquid state. PPG is widely used as an intermediate in polyurethane foams, coatings, and sealants.

3907.29.00

Polyphenylene Ether Resin

Polyphenylene ether (PPE) resin is a high-performance engineering thermoplastic in primary pellet form, consisting of repeating ether linkages from its monomer units. With over 95% polyether content by weight, it falls under tariff item 3907.29.00 as other polyethers. PPE resin is used in automotive parts, electrical components, and appliances due to its heat resistance and dimensional stability.

3907.29.00

Polysulfone Pellets USP Grade

USP-grade polysulfone pellets are high-purity polyethers in primary form, featuring diphenyl sulfone ether linkages that exceed 95% polymer content. They are classified under tariff item 3907.29.00 as other polyethers, given their polyether structure and primary pellet form. These pellets are used in medical devices, food contact materials, and water filtration components.

3907.29.00

Polytetramethylene Ether Glycol (PTMEG)

Polytetramethylene ether glycol (PTMEG) is a liquid polyether polyol in primary form, with tetrahydrofuran-derived ether units comprising over 95% by weight. It is classified under tariff item 3907.29.00 as other polyethers, given its polyether structure and liquid state. PTMEG is a key intermediate in the production of spandex fibers, polyurethane elastomers, and copolyester ethers.

3907.30.00

Bisphenol A Diglycidyl Ether Epoxy Resin

A liquid epoxy resin primarily composed of bisphenol A and epichlorohydrin, with epoxide groups exceeding 0.2% by weight. It is in primary form (liquid) and is used as a base for coatings, adhesives, and composite materials.

3907.30.00

Cycloaliphatic Epoxy Resin

A transparent, low-viscosity epoxide resin with a cycloaliphatic structure, offering UV resistance. It is in primary form and used in optical coatings, electronics encapsulation, and 3D printing applications.

3907.30.00

Flame-Retardant Brominated Epoxy Resin

A brominated bisphenol A epoxy resin (e.g., TBBPA-based) with inherent flame retardancy, used for PCB laminates. It is a chemically modified epoxide resin in primary form, classified under this tariff item per subheading note 1(a)(3).

3907.30.00

Glycidyl Amine Epoxy Resin

A high-performance epoxide resin based on triglycidyl amines like IPDA or TETA, with high functionality for aerospace composites. It is in primary form and classified under this tariff item.

3907.30.00

Liquid DGEBA Epoxy Resin Grade E-12

A standard liquid DGEBA epoxy resin (EEW 180-200 g/eq) used in DIY adhesives and industrial coatings. It is in primary liquid form and classified under this tariff item.

3907.30.00

Multi-Functional Epoxy Resin Araldite GY 285

A commercial penta-functional epoxide resin for advanced composites, in primary form. It is classified under this tariff item as an epoxide resin.

3907.30.00

Novolac Epoxy Resin

A solid or semi-solid epoxide resin derived from novolac phenolic resins, featuring multiple epoxide groups per molecule. It is in primary form and used for high-temperature electrical applications.

3907.30.00

Solid Epoxy Resin Grade E-20

A semi-solid DGEBA epoxy resin (EEW 180-200, softening point 65-75°C) for powder coatings. It is in primary form and classified under this tariff item.

3907.30.00

UV-Curable Epoxy Acrylate Resin

An epoxy backbone modified with acrylate groups for UV curing, but classified under this tariff item if epoxide remains predominant per modification rules. It is in primary form.

3907.30.00

Waterborne Epoxy Resin Emulsion

A liquid epoxy resin emulsified in water (40-60% solids) for eco-friendly coatings. It is in primary form as a dispersion and classified under this tariff item.

3907.40.00

Apec Polycarbonate Resin HT1700

Apec HT1700 is a high-temperature resistant polycarbonate resin supplied as pellets, a primary form under Chapter 39. It is a polycarbonate homopolymer where the carbonate monomer units contribute 95% or more by weight, meeting the subheading note for classification under tariff item 3907.40.00.

3907.40.00

Calibre 300-1000 Polycarbonate Granules

Calibre 300-1000 is a high-impact polycarbonate granule used for blow molding bottles and containers. It is a primary form polycarbonate homopolymer with over 95% carbonate monomer content, qualifying for tariff item 3907.40.00.

3907.40.00

Lexan 141R Polycarbonate Resin

Lexan 141R is a high-performance polycarbonate resin in pellet form for injection molding transparent parts. It is a pure polycarbonate homopolymer in primary form, meeting the 95% monomer threshold for tariff item 3907.40.00.

3907.40.00

Makrolon 2805 Polycarbonate Pellets

Makrolon 2805 is a medium-viscosity polycarbonate in granular primary form for extrusion into sheets and films. It is a polycarbonate homopolymer with at least 95% monomer content, falling under tariff item 3907.40.00.

3907.40.00

Polycarbonate 1200H Pellets

PC 1200H is a general-purpose polycarbonate pellet for consumer electronics housings. It is a primary form polycarbonate homopolymer with over 95% monomer content, qualifying for tariff item 3907.40.00. Flame-retardant variants may contain additives but still meet the classification if the polymer base is unchanged.

3907.40.00

Samsonite Lexan MR10 Polycarbonate

Lexan MR10 is a medium-flow polycarbonate resin for luggage and cases, supplied in primary pellet form. It is a pure polycarbonate composition meeting the 95% monomer threshold, classified under tariff item 3907.40.00.

3907.40.00

Tarflon FN1700 Polycarbonate Pellets

Tarflon FN1700 is a food-grade polycarbonate in uniform pellet form for medical and packaging applications. It is a pure polycarbonate with at least 95% monomer units in primary form, falling under tariff item 3907.40.00.

3907.40.00

Wonderoid PC-100 Polycarbonate Granules

Wonderoid PC-100 is an optical-grade polycarbonate granule for LED lighting diffusers. It is a primary form resin with a pure polycarbonate structure, meeting the subheading note for tariff item 3907.40.00.

3907.40.00

Xantar Polycarbonate Resin 101

Xantar 101 is a standard injection molding grade polycarbonate resin in pelletized primary form. It meets the tariff item 3907.40.00 criteria as a polycarbonate with 95% or more monomer content, without significant copolymer modification.

3907.50.00

Linseed Oil Alkyd Resin

A traditional alkyd resin produced from linseed oil fatty acids, pentaerythritol, and phthalic anhydride, supplied in a primary pasty form. It is used as a binder in artist oils and varnishes. This product falls under tariff item 3907.50.00 as an alkyd resin in primary forms, consistent with the chapter's classification of polyesters modified with fatty acids.

3907.50.00

Long Oil Alkyd Resin

A long oil alkyd resin with over 55% soybean oil content, supplied in primary granular or flake form for high-gloss enamels and primers. It is a polyester resin modified with fatty acids, qualifying as an alkyd resin. This product is classified under 3907.50.00 as an alkyd resin in primary forms.

3907.50.00

Modified Phthalic Alkyd Resin

A modified phthalic alkyd resin based on phthalic anhydride and glycerin, with styrene modification, supplied in primary flaked form for UV-curable coatings. The base alkyd polymer predominates by weight, so it remains an alkyd resin. This product is classified under 3907.50.00 as an alkyd resin in primary forms.

3907.50.00

Pure Alkyd Resin 100% Solids

A high-solids alkyd resin derived from polycondensation of polyols, phthalic anhydride, and drying oils like linseed oil, supplied as a primary form binder for paints. It is a classic alkyd resin in primary form. This product falls under tariff item 3907.50.00 as an alkyd resin in primary forms.

3907.50.00

Short Oil Alkyd Resin

A short oil alkyd resin with less than 40% vegetable oil (e.g., tall oil), supplied in primary liquid form for industrial baking enamels. It is an alkyd resin in primary form, distinct from finished articles. This product is classified under 3907.50.00 as an alkyd resin in primary forms.

3907.50.00

Soya Alkyd Resin Medium Oil

A medium oil alkyd resin from soya fatty acids with 45-55% oil content, supplied in primary liquid resin form for wood finishes. It is an alkyd resin in primary form. This product falls under tariff item 3907.50.00 as an alkyd resin in primary forms.

3907.50.00

Urethane Modified Alkyd Resin

A urethane-modified alkyd resin with urethane segments for improved flexibility, supplied in primary form for automotive clearcoats. The base alkyd polymer predominates by weight, so it remains an alkyd resin. This product is classified under 3907.50.00 as an alkyd resin in primary forms.

3907.50.00

Water-Reducible Alkyd Resin

A water-reducible alkyd resin emulsion with carboxyl groups for water dispersibility, supplied as 80% solids primary dispersion for eco-friendly paints. It is an alkyd resin in primary form, even if water-compatible. This product falls under tariff item 3907.50.00 as an alkyd resin in primary forms.

3907.61.00

Biaxially Oriented PET Resin Pellets

Biaxially oriented PET resin pellets with a viscosity number of 78 ml/g or higher, formulated for producing biaxially oriented film used in food packaging and labels. The high molecular weight provides excellent barrier properties and printability when processed.

3907.61.00

Blow Molding Grade PET Pellets IV 82 ml/g

High-clarity polyethylene terephthalate (PET) pellets with a viscosity number of 82 ml/g, designed for stretch blow molding of carbonated soft drink bottles. The high viscosity ensures balanced melt strength and uniform bottle wall thickness during high-speed production. This product falls under tariff item 3907.61.00 because it is PET in primary form with a viscosity number of 78 ml/g or higher.

3907.61.00

Bottle-Grade PET Chips

PET polymer chips designed for blow-molded beverage bottles, exhibiting high viscosity (≥78 ml/g) for superior mechanical strength. These chips are in primary form and not further worked. They are classified under tariff item 3907.61.00 as PET in primary forms with a viscosity number of 78 ml/g or higher.

3907.61.00

Food Grade PET Chips IV 80 ml/g

Food-grade PET chips with an intrinsic viscosity of 80 ml/g, used for producing food and pharmaceutical packaging bottles. These chips meet strict purity requirements for direct food contact, with controlled acetaldehyde levels. They are classified under tariff item 3907.61.00 as PET in primary forms with a viscosity number of 78 ml/g or higher.

3907.61.00

High-Clarity PET Pellets IV 79 ml/g

Ultra-clear PET pellets with a viscosity number of 79 ml/g, designed for premium beverage and cosmetics packaging. The reduced crystallinity minimizes haze, enabling sparkling clarity in colored bottles. This product is classified under tariff item 3907.61.00 as PET in primary forms with a viscosity number of 78 ml/g or higher.

3907.61.00

High Clarity PET Resin for Jars

High clarity PET resin pellets with a viscosity number of 80+ ml/g, optimized for wide-mouth jar preforms used in food packaging like peanut butter and jams. The high molecular weight provides exceptional clarity and drop impact resistance.

3907.61.00

High IV PET Polymer Granules

Granules of poly(ethylene terephthalate) with an intrinsic viscosity number of 78 ml/g or higher, suitable for durable containers and films. These granules are in primary form and not further worked. They are classified under tariff item 3907.61.00 as PET in primary forms with a viscosity number of 78 ml/g or higher.