… polyterpenes, polysulphides, polysulphones and other products specified in Note 3 to this Chapter, not elsewhere …
Explanatory notes
… polyterpenes, polysulphides, polysulphones and other products specified in Note 3 to this Chapter, not elsewhere … is bound on both sides by carbon atoms, as opposed to the thioplasts of Chapter 40, which contain sulphur‑sulphur … in moulded articles, for example, aircraft and automobile parts, pump impellers. (3) Polysulphones are polymers …