Coumarone-Indene Thermoset Resin Flakes
Flakes of coumarone-indene resin modified to thermosetting state with aromatic monomers for adhesive and ink production. Specifically listed under 3911 primary forms, subheading 3911.90.4500 for thermosetting variants. Provides tack and flexibility in formulations.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If thermoplastic version
Same resins but non-thermosetting fall in 3911.10 primary form.
If self-adhesive in primary rolls/sheets
Adhesive primary forms move to Chapter 39 heading 3919.
If bituminous petroleum content >70%
High petroleum distillate content shifts to Chapter 27 tar/bitumen.
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Import Tips & Compliance
• Reference note 3 to section VII confirming inclusion as coumarone-indene product
• Test for thermoset vs thermoplastic to prevent shift to 3911.10 non-thermoset
Related Products under HTS 3911.90.45.00
Phenolic Thermosetting Resin Pellets
Pellets of phenolic resin, a thermosetting polymer containing aromatic monomer units derived from phenol and formaldehyde, supplied in primary form for molding applications. Classified under HTS 3911.90.4500 as a thermosetting product specified in note 3, not elsewhere included, with aromatic components. Used in electrical insulators and automotive parts due to heat resistance.
Epoxy Thermosetting Resin Granules
Granules of bisphenol A-based epoxy resin, thermosetting with aromatic epoxy groups, in primary form for composite manufacturing. Falls under HTS 3911.90.4500 as other thermosetting products with aromatic monomer units not specified elsewhere. Essential for adhesives, coatings, and aerospace composites.
Polyaramid Thermosetting Powder
Fine powder of polyaramid (aromatic polyamide) thermosetting resin for high-performance coatings and laminates. HTS 3911.90.4500 covers this as other thermosetting with aromatic monomer units in primary form. Known for exceptional thermal stability in electronics.
Polysulfone Thermosetting Beads
Beads of polysulfone resin with thermosetting modifications containing aromatic sulfone units for medical device molding. HTS 3911.90.4500 as polysulfones specified in note 3, thermosetting primary form. Offers biocompatibility and sterilizability.
Aromatic Polyterpene Thermoset Prills
Prills of polyterpene resin derived from aromatic terpenes, thermosetting for pressure-sensitive adhesives. Covered by 3911.90.4500 as polyterpenes with aromatic modifications in primary form. Enhances adhesion in tapes and labels.
Modified Petroleum Thermoset Resin Lumps
Lumps of C9 petroleum resin modified with aromatic monomers to thermosetting form for tire cord adhesives. HTS 3911.90.4500 for petroleum resins containing aromatic units, primary lumps. Improves rubber-to-fabric bonding.