Method for heating melt channels in a die plate and method for granulating a polymer melt

摘要

The method involves providing a wall of melt channel made of material with a thermal conductivity smaller than the thermal conductivity of the material of the base (4) of perforated plate (1). The nozzle orifices (3) are provided on the perforated plate. The flow optimizing process is performed on the wall of melt channel in the form of non-stick coating process or smoothing process. The melt is formed of thermoplastic plastic material and polymer containing caprolactam, polyamide or expandable polystyrene. Independent claims are included for the following: (1) method for performing granulation of melt; and (2) granules.