Frei fliessendes Packungsmaterial

摘要

Free flowing packing material fills out spaces between boxed items etc. and comprises compressible cylindrical bodies made from expanded plastics whose inherent stiffness retains shape when exposed to impact or other pressure by compresses when outside loads are applied insofar as the bodies are designed as open hollows. The plastics used should be alkenyl-aromatic polymers, aliphatic olefin polymers and polyurethane polymers with density between 0.0048 and 0.072 kg/dm). The material can be cellular or foamed in form, and if designed as hollows they engage one another for added strength and impact resistance.