Polybutylene
Polymers of propylene or of other olefins, in primary forms: > Other > Polybutylene
Duty Rate (from China)
Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 3902.90.00.10
Polybutylene Resin PB-01
Polybutylene resin PB-01 is a high-purity thermoplastic polymer in primary pellet form, consisting of at least 95% butene-1 monomer units by weight. It is used in hot-melt adhesives and pipe manufacturing due to its flexibility and creep resistance. Classified under HTS 3902.90.0010 as polybutylene per subheading note (a)(1), as the named monomer contributes over 95% of the polymer content.
PB Pipe Grade Polybutylene Pellets
PB Pipe Grade Polybutylene Pellets are unmodified polybutylene homopolymer granules for plumbing pipe extrusion, with butene-1 units comprising 97% by weight. This primary form polymer offers superior stress crack resistance for hot/cold water systems. Falls under 3902.90.0010 as it meets the polybutylene definition in primary forms.
Industrial Polybutylene PB-402
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.
Pure Polybutylene Homopolymer Granules
Pure Polybutylene Homopolymer Granules contain 98%+ butene-1 monomer units in unmodified primary form for masterbatch production. Ideal for blending in wire insulation and medical tubing. Classified specifically as polybutylene under 3902.90.0010 due to exceeding 95% named polymer threshold.
Polybutylene for Hot Melt Adhesives
Polybutylene for Hot Melt Adhesives is a low-viscosity polybutylene resin pellets (95.2% butene-1) in primary form, designed for packaging and bookbinding glues. Its tackiness and flexibility make it ideal for non-woven applications. Meets HTS 3902.90.0010 criteria as named polybutylene polymer.