Butadiene rubber (BR)
Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip: > Butadiene rubber (BR)
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 4002.20.00.00
Styrene-Butadiene Rubber (SBR) Latex
A liquid dispersion of butadiene rubber copolymerized with styrene, used in adhesives and carpet backings. Classified under HTS 4002.20.00.00 as synthetic butadiene rubber (BR) in primary form (latex), meeting vulcanization and elasticity criteria without prohibited compounding agents.
Polybutadiene Rubber (BR) Granules
Granular form of cis-1,4-polybutadiene rubber, a primary form for tire manufacturing and synthetic golf balls. Falls under HTS 4002.20.00.00 as butadiene rubber in bulk granules, uncompounded and retaining raw material character.
High Cis-Polybutadiene Rubber Bale
Baled high-cis butadiene rubber for conveyor belts and footwear soles, in primary bulk form. HTS 4002.20.00.00 applies to this unvulcanized synthetic BR meeting elongation/recovery tests without prohibited additives.
Neodymium-Catalyzed Polybutadiene Rubber
High-microstructure BR produced via neodymium catalyst, baled for golf balls and tires. HTS 4002.20.00.00 covers this synthetic butadiene rubber in primary bale form, uncompounded.
Butadiene Rubber Powder
Fine powder form of BR for rubber compounding and asphalt modification. Primary form under HTS 4002.20.00.00 as synthetic rubber powder, meeting Chapter 40 purity requirements.
Cis-1,4-Polybutadiene Rubber Latex
Prevulcanized latex of cis-butadiene rubber for dipping and coatings. Classifies in HTS 4002.20.00.00 as BR primary liquid form, with permitted prevulcanization per notes.
BR Oil-Extended Rubber Bale
Butadiene rubber extended with mineral oil in bale form for easier processing. Permitted under HTS 4002.20.00.00 as primary BR with allowed oil extender per note 5(a)(iii).
Synthetic Isoprene-Butadiene Rubber (SIBR)
BR copolymerized with small isoprene for tire treads, in granular primary form. Classifies under HTS 4002.20.00.00 if predominantly butadiene rubber meeting BR criteria.
Solution Styrene Butadiene Rubber (SSBR)
Solution-polymerized BR-styrene copolymer in crumb form for high-performance tires. Classified as butadiene rubber under HTS 4002.20.00.00 in primary crumbs, free of disallowed compounding.
Lithium-Catalyzed Butadiene Rubber Crumb
Crumbs of solution BR from lithium initiation, for wire insulation compounds. HTS 4002.20.00.00 for primary crumb form of synthetic butadiene rubber.