Aba block copolymer of propylene or of other olefins, of polystyrene, ethylenebutylene copolymer and polystyrene, containing by weight < 35% of styrene, in blocks of irregular shape, lumps, powders, granules, flakes and similar bulk forms
Polymers of propylene or of other olefins, in primary forms (excl. polypropylene, polyisobutylene, propylene copolymers, and a aba block copolymer of polystyrene, ethylenebutylene copolymer and polystyrene, containing by weight < 35% of styrene and polybut1ene, a copolymer of but1ene with ethylene containing by weight < 10% of ethylene, or a blend of polybut1ene with polyethylene and/or polypropylene containing by weight < 10% of polyethylene and/or < 25% of polypropylene, in blocks of irregular shape, lumps, powders, granules, flakes and similar bulk forms)
Polybut1ene, a copolymer of but1ene with ethylene containing by weight < 10% of ethylene, or a blend of polybut1ene with polyethylene and/or polypropylene containing by weight < 10% of polyethylene and/or < 25% of polypropylene, in blocks of irregular shape, lumps, powders, granules, flakes and similar bulk forms