Industrial Polybutylene PB-402 from Japan
Industrial Polybutylene PB-402 is a high molecular weight polybutylene in granular primary form, with 96.5% butene-1 content for injection molding applications. Used in flexible packaging films and sealants due to its clarity and toughness. HTS 3902.90.0010 applies as pure polybutylene per Chapter 39 polymer classification rules.
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
• Test for exact polymer composition; customs may require FTIR analysis for 95% verification
• Avoid packaging that suggests finished goods to prevent reclassification under 3920-3926