Oppanol B15 Polyisobutylene Resin from Japan
Oppanol B15 is a high molecular weight polyisobutylene resin serving as an adhesive tackifier and chewing gum base component. It qualifies for HTS 3902.20.5000 as 'Other' polyisobutylene with ≥95% isobutylene monomer content in primary slab or pellet form. This thermoplastic polymer is essential for pressure-sensitive adhesives.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit GPC analysis confirming molecular weight distribution; ensure no vulcanizing agents present to stay in primary forms; declare exact purity to prevent audit reclassifications