A method for the production of foams having high warmth the form of resistant

摘要

The method is for producing a foamed material which is very lightweight, resistant to impact within wide temperature ranges, flexible and dimensionally stable. In the method, a polycarbonate foamed resin is produced, the melt of which is mixed in the extruder by directly blowing in an expanding agent and, after extrusion, is left to set slowly without any cooling operations.