Stacked polymer technology. An alternating polymer extrusion process and product

摘要

A bi-component process which produces an extrusion splitable in the cross machine direction.

主权项

1. A method of making a fastener having hooks or barbs for engaging with loops of another material, comprising:
extruding a continuous multi-component extrusion product having alternating segments of a first polymer segment alternating with a second polymer segment, wherein the first polymer segment comprises at least one hook or barb, the second polymer segment comprises at least one hook or barb, the first polymer material is dissimilar from the second polymer material, and the alternating segments are arranged directly behind one another in the extrusion direction; adding a continuous core of polymer to the multi-component extrusion product; and separating the alternating segments apart from one another, wherein the continuous core links the separated alternating segments together.