Chapter --Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and other products specified in note?3 to this chapter, not elsewhere specified or included, in primary forms (3911)
Result ------- Poly(oxy-1,4-phenylenesulphonyl-1,4-phenyleneoxy-1,4-phenyleneisopropylidene-1,4-phenylene), in one of the forms mentioned in note?6(b) to this chapter (39119011)