Producing an extruded plastic profile with an edge or surface perpendicular to the extruder comprises heat treatment of the edge or surface to alter its qualities

摘要

Producing an extruded plastic profile with an edge or surface perpendicular to the extruder comprises heat treatment of the edge or surface to alter its qualities, especially its surface finish or geometric shape. Independent claims are also included for: (1) apparatus for carrying out the above process, comprising means for heat treatment as above; (2) extruded plastic profile produced as above.