3903 Polymers of styrene, in primary forms

3903.11 Styrene polymers; expansible polystyrene, in primary forms

• 3903.11.00.00 Expansible6%

3903.19 Styrene polymers; (other than expansible polystyrene), in primary forms

• 3903.19.00.40 Crystalline polystyrene with: - a melting point of 268 °c or more but not more than 272 °c - a setting point of 232 °c or more but not more than 247 °c, - whether or not containing additives and filling material6%
• 3903.19.00.90 Other6%

3903.20 Styrene polymers; styrene-acrylonitrile (SAN) copolymers, in primary forms

• 3903.20.00.00 Styrene-acrylonitrile (san) copolymers6%

3903.30 Styrene polymers; acrylonitrile-butadiene-styrene (ABS) copolymers, in primary forms

• 3903.30.00.00 Acrylonitrile-butadiene-styrene (abs) copolymers6%

3903.90 Styrene polymers; in primary forms, n.e.c. in heading no. 3903

• 3903.90.10.00 Copolymer, solely of styrene with allyl alcohol, of an acetyl value of 175 or moreFree
• 3903.90.20.00 Brominated polystyrene, containing by weight 58 % or more but not more than 71 % of bromine, in one of the forms mentioned in note 6(b) to this chapterFree
• Other
• 3903.90.90.20 Copolymer in the form of granules containing by weight: - 83 ± 3 % styrene, - 7 ± 2 % n-butyl acrylate, - 9 ± 2 % n-butyl methacrylate and - 0,01 % or more but not more than 1 % of polyolefinic wax6%
• 3903.90.90.35 Copolymer of _α_-methylstyrene and styrene, having a softening point exceeding 113 ºc6%
• 3903.90.90.38 Polytetrafluoroethylene (cas rn 9002-84-0) encapsulated with an acrylonitrile-styrene copolymer (cas rn 9003-54-7), with a content by weight of each polymer of 50 % (± 1 %)6%
• 3903.90.90.43 Mixture of polymers consisting by weight of: -10 % or more but not more than 30 % of a styrene-ethylene-butylene-styrene block copolymer (cas rn 66070-58-4), -25 % or more but not more than 45 % of mineral oil (cas rn 8042-47-5), -25 % or more but not more than 45 % of calcium carbonate (cas rn 1317-65-3), -10 % or more but not more than 20 % of polypropylene (cas rn 9003-07-0), and -1 % or more but not more than 3 % of a copolymer of α-methylstyrene and vinyltoluene (cas rn 9017-27-0)6%
• 3903.90.90.60 Copolymer of styrene with maleic anhydride, either partially esterified or completely chemically modified, in flake or powder form6%
• 3903.90.90.70 Copolymer in the form of granules containing by weight: - 75 % (± 7 %) styrene and - 25 % (± 7 %) methylmethacrylate6%
• 3903.90.90.86 Mixture containing by weight: - 45% or more but not more than 65% of polymers of styrene, - 30% or more but not more than 45% of poly(phenylene ether), and - not more than 11% of additives6%
• 3903.90.90.90 Other6%