In the 1940s, Germany's biggest chemical industry conglomerate established a committee to explore screw technology in mixing and kneading applications.
By 1965 he had developed the twin-shaft All Phases processor, the first machine that could reliably and safely process highly viscous, pasty and crust-forming products.
Future processing technology will depend on machines that can efficiently handle large working volumes, are self-cleaning, offer a wide range of residence times, and exhibit excellent mixing and kneading performance during wet, pasty and viscous phases.
Subsequently, LIST Kneader Reactor technology showed that it could effectively combine multiple phases and process steps — reaction, crystallization, drying, melting, mixing, kneading and evaporation — in a single machine.
[1][2][3] Though Heinz List died in 1988, he is remembered both as a pioneering engineer — one of only 26 members of the Polymer Processing Hall of Fame at the University of Akron, Ohio, USA — and as a business leader.
Today LIST is world leader in numerous industries, including TDI, Sugar Replacer, ABS, Fiber Spinning Solutions, SAP (Super Absorbent Polymers), and EPDM.