Example of a highly multilayered morphology in an extruded filament. The number of layers that are obtained is controllable. Many thousands of layers have been produced in extruded filaments and films. Extrusions can be manufactured with a wide variety of morphologies and morphology is selectable on line so that properties of products can be optimized.

Reference: D. A. Zumbrunnen and S. Inamdar, "Novel Sub-Micron Highly Multi-layered Polymer Films Formed by Continuous Flow Chaotic Mixing," Chemical Engineering Science, Vol. 56, pp. 3893-3897, 2001.