… Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms. …
Explanatory notes
… other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and … (1) Polyacetals . Polymers obtained from an aldehyde, normally formaldehyde, and characterised by the presence of … as engineering plastics, polyoxypropylene as an intermediate for polyurethane foam. This heading also covers …