Klockner Pentaplast of America, Inc.

Steven J Warakomski

James Warren Davis

Rachel Rimeikiene

A multi-layered film laminate for use in making hot filled blister packages and a method of making such material is provided. The laminate generally includes a central core layer of barrier polymer film disposed between a slip film and a thermostable film. In particularly advantageous embodiments, the barrier film is a polychlorotrifluoroethylene film, the slip film is a polyvinyl chloride film, and the heat resistant film is a temperature resistant copolyester. The disclosed material provides a high moisture barrier and a stable inter-laminar structure that can withstand hot filling of liquids, such as liquids used to form soft and/or gummy dosages on form-fill-and-seal blister packaging machines.

Hot fill laminate

A four-layer film for packaging, including blister packaging, is described. Layermay be a rigid film, such as a polyvinyl chloride (PVC) or polyester. Layermay be a moisture barrier, such as polychlorotrifluoroethylene (PCTFE). Layermay be an oxygen barrier, such as a co-extruded film having a polyethylene (PE) layer, an EVOH layer, and a second PE layer. Layermay be a relatively thin layer of a rigid film, such as a PVC or polyester. In this arrangement, Layermay protect the contents of the package from external or atmospheric moisture. Layermay also protect Layerfrom atmospheric moisture, thereby helping to preserve the effectiveness of Layeras an oxygen barrier.

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Gordonsville, VA, United States of America

Steven J Warakomski