Other
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: > Other: > Other: > Other: > Other
Duty Rate (from China)
Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified 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.
Polyterpene Resin from Pinene
Beta-pinene polyterpene resin is polymerized from turpentine-derived monomers, serving as a tackifier in pressure-sensitive adhesives. Falls under 3911.90.91 as polyterpenes in primary forms (granules), explicitly named in chapter note 3 with >95% terpene monomer content.
DCPD Petroleum Resin
Dicyclopentadiene (DCPD) petroleum resin is a cyclic hydrocarbon polymer from petroleum byproducts, used in printing inks and paints. Classified in HTS 3911.90.91 as 'other' petroleum resin in primary forms, with DCPD monomer >95% by weight per subheading note.
Polysulfone Resin Pellets
Polysulfone resin in pellet form is an engineering thermoplastic with ether and sulfone linkages, used for medical devices and membranes. It is classified under HTS 3911.90.91 as polysulfones in primary forms, specified in note 3, unmodified.
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.