| 摘要 |
<p>Prods. have a m.pt. of 30-240 degrees C such as fats, bitumens, paraffins, polymers, are packaged in heat-resistant plastics or metal foil, the prods. being poured as melts, into suitable containers and allowed to cool to solidify. The melt is filled into a horizontally arranged mould lined with the foil, and whilst still liq. or only incompletely set, partitioned into parcels by inserting separators into the mould that are coated with plastics or metal foil resistant to the melt. Polyamide, polyester, polypropylene, polyethylene, PVC or Al-foils are suitable.</p> |
