Pentaerythritol Ester of Polyterpene Resin
Pentaerythritol Ester of Polyterpene Resin is a chemically modified polyterpene resin where the polymer backbone has been esterified with pentaerythritol to enhance polarity and adhesion properties. It remains in primary form, such as flakes or pellets, and is used as a tackifying resin in adhesives, coatings, and chewing gum. Under subheading note 1(a)(3), chemically modified polymers are classified in the 'Other' subheading unless more specifically covered, but since 3911.10.00 is the only tariff item in the subheading, it falls here as a polyterpene resin.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the esterification results in a polyester where ester monomer units predominate by weight
Polyesters in primary forms are classified in heading 3907, and if the pentaerythritol ester units dominate, the product may be considered a polyester rather than a polyterpene.
If the resin is not specifically a polyterpene but another chemically modified polymer of Note 3
This subheading covers other products specified in Note 3, providing a fallback for chemically modified resins not matching the specific terms of 3911.10.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the chemical modification process and provide a certificate of analysis to confirm the resin is a chemically modified polyterpene, as this supports classification under 3911.10.00
• Check if the esterification introduces any monomer units that could shift classification to another heading, such as 3907 for polyesters, if those units predominate
• Ensure the product is in primary forms and not mixed with other polymers in a way that would require classification under a different subheading
Related Products under Tariff item 3911.10.00
Aliphatic C5/C9 Copolymer Petroleum Resin
> This copolymer resin combines C5 aliphatic and C9 aromatic petroleum streams, with C5 predominating by weight. It is in primary form (solid granules or flakes) and functions as a petroleum resin, commonly used as a tackifier in adhesives and rubber compounds. Under subheading note (a)(4), since C5 predominates and the resin is not more specifically covered elsewhere, it classifies in tariff item 3911.10.00.
C5 Petroleum Resin PR-110
> C5 Petroleum Resin PR-110 is a low molecular weight thermoplastic resin derived from C5 fractions of naphtha cracking. It is supplied in primary form as solid granules or flakes and is used as a tackifier in adhesives, sealants, and rubber compounding. As a petroleum resin in primary form, it falls directly under tariff item 3911.10.00.
Coumarone-Indene Resin C90
> Coumarone-Indene Resin C90 is a thermoplastic resin polymerized from coumarone and indene found in coal tar or petroleum fractions. It is supplied in primary solid form and is explicitly named in tariff item 3911.10.00. This resin is used in paints, varnishes, and rubber goods for its hardness and gloss properties.
DCPD Petroleum Resin D-125
DCPD Petroleum Resin D-125 is a hydrocarbon resin derived from dicyclopentadiene, a byproduct of petroleum cracking, and is supplied in pellet form as a primary material. It functions as a tackifier in adhesives, sealants, and rubber compounding, where its thermoplastic properties are essential. Because it is a petroleum resin in primary forms and not elsewhere specified, it is classified under tariff item 3911.10.00.
Hydrocarbon Petroleum Resin Necor 100
> Necor 100 is a fully aliphatic C5 petroleum resin designed for rubber-tire applications and imported as primary granules. It functions as a tackifier and processing aid in rubber compounds, meeting the definition of a petroleum resin in primary form. This product falls under tariff item 3911.10.00 as a petroleum resin.
Hydrogenated C9 Petroleum Resin HC-9100
> Hydrogenated C9 Petroleum Resin HC-9100 is a highly stable, light-colored resin produced from C9 aromatic petroleum streams through hydrogenation. It is imported in primary flake form and is used in adhesives, coatings, and printing inks. As a petroleum resin in primary form, it classifies under tariff item 3911.10.00.