Hot-Melt Extrusion Technology

Authored by: Michael A. Repka

Encyclopedia of Pharmaceutical Science and Technology

Print publication date:  July  2013
Online publication date:  July  2013

Print ISBN: 9781841848198
eBook ISBN: 9781351124874
Adobe ISBN:


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Invented more than a century ago, hot-melt extrusion is one of the most widely applied processing techniques in the plastics industry. Although it was first developed to manufacture lead pipes, hot-melt extrusion did not become a significant plastics processing technique until the middle of the 19th century when it was used to insulate wire with a polymer coating. Since then, the application of hot-melt extrusion as a manufacturing process has expanded beyond the production of polymeric articles and includes large-scale commercial applications in polymer production and compounding. It is estimated that the majority of all plastic products are manufactured using a hot-melt extrusion process (1).

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