Thermosetting
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 > Thermosetting
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 3911.90.91.50
Melamine-Formaldehyde Resin Granules
Thermosetting melamine-formaldehyde resin in granular primary form, used for molding durable laminates and coatings. Classified under HTS 3911.90.91.50 as a thermosetting polymer not elsewhere specified, meeting the criteria where the monomer units contribute over 95% by weight per subheading note (a)(1).
Urea-Formaldehyde Resin Powder
Thermosetting urea-formaldehyde resin powder in primary form for particleboard adhesives and molded products. Falls under 3911.90.91.50 as a thermosetting product NES, compliant with polymer classification rules based on predominant monomer weight.
Epoxy Novolac Resin Pellets
High-performance thermosetting epoxy novolac resin in pellet form for electronics encapsulation. HTS 3911.90.91.50 applies to this NES thermosetting polymer in primary form, where epoxy and novolac units predominate per note (a)(4).
Diallyl Phthalate Resin Granules
Thermosetting diallyl phthalate (DAP) resin granules for high-temperature electrical components. Classified in 3911.90.91.50 as other thermosetting polymers in primary forms not specified elsewhere.
Polyimide Prepolymer Powder
Thermosetting polyimide prepolymer powder in primary form for aerospace composites. Under 3911.90.91.50 as NES thermosetting product, classified by predominant imide monomer units.
Cyanate Ester Resin Flakes
Thermosetting cyanate ester resin flakes for radar-transparent composites. HTS 3911.90.91.50 covers this primary form thermoset NES in Chapter 39.
Bismaleimide Resin Pellets
High-temp bismaleimide (BMI) thermosetting resin pellets for aircraft structures. Primary form classification under 3911.90.91.50 as other thermosets.
Silicone Novolac Resin Powder
Thermosetting silicone novolac hybrid resin powder for semiconductor encapsulation. 3911.90.91.50 as thermosetting NES primary polymer.
Triazine Resin Granules
Thermosetting triazine resin granules for flame-retardant moldings. Primary form under 3911.90.91.50 per Chapter 39 notes.
Vinyl Ester Resin Flakes (Thermoset)
Thermosetting vinyl ester resin flakes for corrosion-resistant laminates. Classified 3911.90.91.50 as primary thermoset NES.
Furan Resin Powder
Thermosetting furan resin powder from furfuryl alcohol for foundry cores. 3911.90.91.50 primary form classification.
Allylic Resin Pellets
Thermosetting allylic resin pellets (diallyl esters) for precision moldings. NES thermoset in primary form: 3911.90.91.50.
Phenol-Furfural Resin Granules
Thermosetting phenol-furfural resin granules for chemical-resistant equipment. Primary form under 3911.90.91.50.
Aniline-Formaldehyde Resin Powder
Thermosetting aniline-formaldehyde resin powder for specialty coatings. Classified 3911.90.91.50 primary thermoset.
Guanamine-Formaldehyde Resin Flakes
Thermosetting guanamine-formaldehyde resin flakes for baking enamels. 3911.90.91.50 as other primary thermosets.