Other
Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives: > Other: > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2910.90.91.00
Glycidol (2,3-Epoxy-1-propanol)
Glycidol is a viscous liquid epoxy alcohol containing a three-membered epoxide ring, used as a reactive diluent in epoxy resin formulations and as an intermediate in pharmaceutical synthesis. It falls under HTS 2910.90.91.00 as an epoxyalcohol with a three-membered ring, distinct from excluded epoxides noted in chapter provisions. The compound's epoxy functionality makes it essential for polymer cross-linking applications.
1,2-Epoxy-3-phenoxypropane
1,2-Epoxy-3-phenoxypropane is an epoxy ether derivative featuring a three-membered epoxide ring and phenoxy substitution, used in specialty coatings and adhesive formulations. Classified under HTS 2910.90.91.00 as an epoxyether with a three-membered ring, it meets chapter criteria for separate chemically defined epoxides. Its halogen-free structure distinguishes it from sulfonated or nitrated derivatives.
Butylene Oxide (1,2-Epoxybutane)
Butylene oxide is a simple aliphatic epoxide with a three-membered ring, employed as a monomer in polyether production and as a sterilizing agent. It qualifies for HTS 2910.90.91.00 as an 'other' epoxide, explicitly covered despite chapter note exclusions for certain cyclic forms. The compound's volatility requires stabilized packaging for safe transport.
Styrene Oxide
Styrene oxide contains a three-membered epoxide ring attached to a benzene ring, used as an intermediate in pharmaceutical synthesis and polymer modifiers. Under HTS 2910.90.91.00 as an other epoxy compound with a three-membered ring, it fits chapter scope for chemically defined organics. Its reactivity necessitates careful handling during import.
Cyclohexene Oxide
Cyclohexene oxide features a three-membered epoxide ring fused to a cyclohexane structure, serving as a chiral building block in organic synthesis. Classified in HTS 2910.90.91.00 as an other epoxide with specified ring, adhering to chapter limitations excluding certain cyclic polymers. Industrial applications include epoxy resin hardeners.
Glycidyl Methacrylate
Glycidyl methacrylate is an epoxy-functional methacrylate monomer with a three-membered glycidyl ring, widely used in UV-curable coatings and adhesives. HTS 2910.90.91.00 covers it as an epoxyether derivative meeting chapter criteria for epoxides. Polymerization reactivity drives its industrial demand.
Allyl Glycidyl Ether
Allyl glycidyl ether contains a three-membered epoxide ring with allyl substitution, functioning as a reactive diluent in epoxy resin systems. It falls under HTS 2910.90.91.00 as an epoxyether per chapter definitions excluding sulfonated derivatives. The compound enhances viscosity control in composites.
Phenyl Glycidyl Ether
Phenyl glycidyl ether is an aromatic epoxyether with a three-membered ring, used for toughening epoxy resins and in electrical potting compounds. HTS 2910.90.91.00 classification applies as an other epoxyether meeting purity standards. Its low volatility suits high-temperature applications.
n-Butyl Glycidyl Ether
n-Butyl glycidyl ether features a three-membered epoxide with n-butyl chain, acting as a flexibility modifier in epoxy formulations. Under HTS 2910.90.91.00 as epoxyether, it complies with chapter notes for transport-stabilized compounds. Common in marine coatings.
2-Ethylhexyl Glycidyl Ether
2-Ethylhexyl glycidyl ether is a branched chain epoxyether with three-membered ring, used for low-viscosity epoxy diluents in composites. HTS 2910.90.91.00 covers it as other epoxides per chemical definition. High hydrophobicity benefits outdoor applications.
Trimethylolpropane Triglycidyl Ether
Trimethylolpropane triglycidyl ether (TMPTGE) has three three-membered epoxide rings, used as crosslinking agent in high-performance coatings. Classified HTS 2910.90.91.00 as multifunctional epoxyether. Higher functionality increases Tg in cured systems.
Neopentyl Glycol Diglycidyl Ether
Neopentyl glycol diglycidyl ether contains two epoxide rings on neopentyl backbone, for flexible epoxy systems in electronics. HTS 2910.90.91.00 as difunctional epoxyether. Excellent electrical properties.
p-Tert-Butylphenyl Glycidyl Ether
p-Tert-butylphenyl glycidyl ether is a sterically hindered aromatic epoxyether with three-membered ring, used in reactive diluents. HTS 2910.90.91.00 classification for substituted epoxyethers. Improves compatibility.
Hexanediol Diglycidyl Ether
1,6-Hexanediol diglycidyl ether features two terminal epoxide rings, providing flexibility in epoxy floor coatings. Under HTS 2910.90.91.00 as other epoxyethers. Long chain reduces viscosity.
Brominated Glycidyl Ether (DER 542)
DER 542 is a brominated bisphenol A diglycidyl ether with three-membered epoxide rings and halogen substitution, used in flame-retardant electronics. HTS 2910.90.91.00 covers halogenated epoxides per heading scope. High bromine content meets UL94 V0.