New Developments in Small Scale Twin Screw Extruders for Color Development

[one_half]Charlie Martin
President/General Manager
Leistritz Extrusion

As President/General Manager of Leistritz Extrusion, Charlie is responsible for the management of a company that provides manufacturing equipment and engineering services to the plastics, medical and pharmaceutical industries in the USA and around the world.

Extensively published in trade publications, textbooks and journals, Charlie has delivered 200+ technical presentations at wide-ranging international events, and is the co-editor of the textbook Pharmaceutical Extrusion Technology, a seminal book on a new manufacturing technology that has been embraced by the pharmaceutical industry. He has also been awarded 2 extrusion related patents.[/one_half] [one_half_last]

[/one_half_last]Charlie currently serves on the Board of Directors for the Society of Plastics Engineers (SPE) Extrusion Division, the Polymer Processing Institute @ New Jersey Institute of Technology, and also on the Technical Advisory Board for Teel Plastics in Baraboo, WI. Previously he has held the Technical Program Chairman and Chairman positions for the SPE Extrusion Division.

Charlie earned his undergraduate degree from Gettysburg College in 1983, and an MBA from Rutgers University in 1990.


Plastics is a major worldwide industry that plays a role in all facets of modern life, from health and nutrition, shelter and transportation, to communication, sports, and leisure activities. Color plays a prominent role in the success of these products. Most masterbatches are processed on twin screw extruders. (TSEs) Oftentimes early stage development for pigments is an expensive and time consuming process. New developments for TSEs allows small quantities of material samples to be quickly evaluated and scaled to production operations. Tips, techniques and test results will be presented.