Explanatory notes
… which are or have been capable, either at the moment of polymerisation or at some subsequent stage, of being formed … influence (usually heat and pressure, if necessary with a solvent or plasticiser) by moulding, casting, extruding, rolling or other process into shapes which are retained on …Legal note
… which are or have been capable, either at the moment of polymerisation or at some subsequent stage, of being formed … influence (usually heat and pressure, if necessary with a solvent or plasticiser) by moulding, casting, extruding, rolling or other process into shapes which are retained on …