Acrylic Impact Modifier Pellets MBAM from Canada
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.
Duty Rate — Canada → United States
14.2%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document core-shell morphology via TEM images if challenged on copolymer structure
• Clearly distinguish from finished PVC compounds (Chapter 39 heading 3904)
• Masterbatch containing >50% carrier resin may classify as polymer blend