Polymethyl Methacrylate (PMMA) Resin Pellets
PMMA resin pellets are acrylic polymers in primary granular form used for injection molding and extrusion into sheets or parts. They fall under HTS 3906.90.5000 as 'other' acrylic polymers not specifically named elsewhere in heading 3906, meeting the 95% monomer content rule for acrylic polymers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ethylene-vinyl acetate copolymer with <95% acrylic monomers
Blends not meeting pure acrylic polymer criteria shift to predominant monomer classification under vinyl polymers.
If chemically modified with significant non-acrylic additives
Modified polymers without specific subheading go to 'other' polyacetals, excluding pure acrylics.
If processed into PVC-acrylic copolymers
Copolymers dominated by vinyl chloride units classify under heading 3904, not acrylics.
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Import Tips & Compliance
• Verify monomer composition via lab testing to confirm 95%+ acrylic content for proper Chapter 39 classification
• Provide supplier certificates of analysis (COA) documenting polymer specs to avoid reclassification during CBP exam
• Avoid common pitfalls like mislabeling as copolymers if predominant monomer doesn't meet subheading criteria
Related Products under HTS 3906.90.50.00
Acrylic Copolymer Beads for Paint
Solid acrylic copolymer beads used as base resin in water-based paints and coatings, supplied in primary form. Classified in 3906.90.5000 as other acrylic polymers where comonomer units contribute 95%+ by weight per subheading notes.
Ethyl Acrylate-Methyl Methacrylate Copolymer Powder
Fine powder copolymer of ethyl acrylate and methyl methacrylate used in adhesives and sealants. Falls under 3906.90.5000 per subheading note (a)(4) as acrylic copolymer with named monomers at 95%+ total weight.
Water-Soluble Acrylic Polymer Flakes
Flake-form acrylic polymers designed for dissolution in water-based formulations like detergents. Classified 3906.90.5000 as other acrylics in primary forms meeting purity criteria in subheading notes.
Acrylic Impact Modifier Pellets MBAM
Methyl methacrylate-butadiene-acrylate-methyl methacrylate (MBAM) copolymer pellets used to toughen PVC. HTS 3906.90.5000 applies as acrylic copolymer with predominant acrylic monomers per classification rules.
Crosslinked Acrylic Microbeads
Highly crosslinked polymethyl methacrylate microbeads used in cosmetics and chromatography. Primary form acrylic polymer under 3906.90.5000 despite crosslinking, as modification doesn't create specific subheading.
Polyacrylonitrile (PAN) Granules
PAN granules serve as primary polymer feedstock for carbon fiber production and synthetic textiles. Under HTS 3906.90.5000 as other acrylic polymers in primary forms, with acrylonitrile monomer at 95%+ by weight.