Aromatic Polysulfone PSU 1700
High-performance thermoplastic polysulfone resin with aromatic ether-sulfone monomer units in primary granular form. Specifically covered under HTS 3911.90.25.00 for polysulfones containing aromatic monomers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If aliphatic-modified or non-aromatic sulfone polymers
Polysulfones lacking aromatic monomers classify in 3911.90.55 other thermoplastic category.
If for industrial end-use in compounded form
Compounded polysulfones for specific applications may fall under polyester engineering plastics in 3907.
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Import Tips & Compliance
• Certify monomer analysis showing ≥95% aromatic units per subheading note (a)(1)
• Use heat-sealed bags to maintain primary form status
• Pitfall: engineering plastic blends may trigger 3904.40 reclassification
Related Products under HTS 3911.90.25.00
Hydrocarbon Petroleum Resin C5
A thermoplastic resin derived from C5 petroleum byproducts, containing aromatic monomer units from its polymerization process. Classified under HTS 3911.90.25.00 as a petroleum resin in primary form, meeting the criteria for aromatic-derived thermoplastic products not elsewhere specified.
Coumarone-Indene Resin Grade 100
Thermoplastic coumarone-indene resin polymerized from coal tar fractions, inherently containing aromatic monomer units. Falls under HTS 3911.90.25.00 for other aromatic-derived products in primary forms like granules.
DCPD Polyterpene Resin PR-120
Thermoplastic dicyclopentadiene (DCPD) modified polyterpene resin with aromatic modification for improved tack. HTS 3911.90.25.00 applies to such modified aromatic terpene polymers in primary pellet form.
Styrene-Modified Petroleum Resin SM-120
Thermoplastic petroleum resin copolymerized with styrene, deriving >95% aromatic content from petroleum and styrene monomers. HTS 3911.90.25.00 for such other aromatic thermoplastics in primary forms.
Modified Coumarone Resin Neciresin CR-100
Aromatic-modified coumarone resin thermoplastic for printing ink applications, in primary flake form. Classifies in HTS 3911.90.25.00 as derived from aromatic coumarone-indene sources.
Beta-Pinene Polyterpene Resin
Thermoplastic resin from beta-pinene terpenes with aromatic modification for adhesive compatibility, supplied in primary lumps. HTS 3911.90.25.00 for aromatic-modified polyterpenes.