Petroleum resins, coumaroneindene resins, polyterpenes, polysulphides, polysulphones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms
Polysulphides, polysulphones and other polymers and prepolymers produced by chemical synthesis, n.e.s., in primary forms
Petroleum resins, coumarone, indene or coumaroneindene resins and polyterpenes, in primary forms
Poly(1,3phenylene methylphosphonate), in primary forms