WEB EXCLUSIVE At this month’s SPE Annual Technical Conference in Milwaukee, Thorsten Krumpholz of the German Institute of Plastics Processing (IKV) in Aachen will present a new physical foaming process for standard injection machines.

WEB EXCLUSIVE At this month’s SPE Annual Technical Conference in Milwaukee, Thorsten Krumpholz of the German Institute of Plastics Processing (IKV) in Aachen will present a new physical foaming process for standard injection machines. Called ProFoam, it feeds nitrogen or CO2 gas directly from the bottle to the machine throat under pressure of 435 to 725 psi. It uses no special screw or barrel, nor gas-metering equipment. The throat does require an air lock, and the back end of the screw needs a gas-tight seal. Heat inside the barrel is said to accelerate diffusion of gas into the melt, yielding a one-phase solution with no bubbles. +49 241 80-93806 • krumpholz@ikv.rwth-aachen.de

IKV Aachen
RWTH Aachen
Hausanschrift Pontstrasse 49 D-52062, Germany