Terpene Phenolic Resin
Terpene phenolic resin combines polyterpene with phenol-formaldehyde, used in adhesive tackifiers. Falls in 3911.90.91 as chemically modified polyterpene (note (a)(3)), in primary flake form, not specific phenolic subheading.
Import Duty Rates by Country of Origin
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 predominant phenolic units
Phenolic-formaldehyde >95% classify in 3909 per note (a)(1).
If coumarone only
Pure coumarone without terpene/phenolic in specific subheading.
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Import Tips & Compliance
• Disclose phenolic content (<20% typical) to confirm modification status
• Softening point range (110-140°C) aids verification
Related Products under HTS 3911.90.91
Hydrocarbon Resin G-90
G-90 hydrocarbon resin is a general-purpose petroleum resin (softening point 90°C) for rubber compounding. HTS 3911.90.91 as other petroleum resin, primary granules, mixed C5/C9 but C9 predominant without specific name.
Pentaerythritol Ester of Rosin
Pentaerythritol ester of rosin is a tall oil derivative used in inks, technically a polyterpene ester. 3911.90.91 as modified polyterpene, though borderline with 3806.
Liquid Polysulfide Polymer
Liquid polysulfide polymer (LP-3 type) for sealants, mercaptan-terminated. 3911.90.91 as polysulfides primary liquid form.
C5 Aliphatic Petroleum Resin
C5 aliphatic petroleum resin is a thermoplastic resin derived from the C5 fraction of petroleum cracking, used primarily as a tackifier in adhesives and hot-melt coatings. It falls under HTS 3911.90.91 as a petroleum resin in primary forms (pellets or granules), not elsewhere specified, meeting the chapter note criteria for polymers specified in note 3. This classification applies because it is a hydrocarbon resin with predominant C5 monomer units exceeding 95% by weight.
Hydrogenated C9 Petroleum Resin
Hydrogenated C9 petroleum resin is a stabilized, low-odor version of aromatic hydrocarbon resin used in hot-melt adhesives and sealants. Classified in 3911.90.91 as 'other' petroleum resins in primary forms, as hydrogenation is a chemical modification not covered by specific subheadings per note (a)(3). It consists primarily of hydrogenated alkyl-aromatic monomers.
Coumarone-Indene Resin
Coumarone-indene resin is a synthetic thermoplastic derived from coal tar fractions, used as a binder in rubber and adhesives. It qualifies for HTS 3911.90.91 as specified in note 3 to Chapter 39, in primary forms like pastilles, with coumarone/benzofuran and indene monomers predominant.