Blister Packaging, Packaging Films, Thermoformed Packaging

Tekni-Plex Study Demonstrates Effectiveness of Cyclic Olefin Copolymer as a Moisture Barrier in Blister Packs

Topas® COC Evaluated Against PVDC and PCTFE Barrier Layers in Five Tekniflex® Films

Manufacturing News Center

Blister packaging made from Topas® COC for easy portioning of shampoo
Photo courtesy of Topas/Celanese

Summit, New Jersey; Kelsterbach, Germany -- A study of formed blisters by Tekni-Plex, a major packaging film supplier, found that cyclic olefin copolymer-based films can offer equal or better moisture protection in blister packaging compared to certain structures of polyvinyl chloride (PVC)-based films having barrier layers of either polyvinylidene chloride (PVDC) or polychlorotrifluoroethylene (PCTFE).

The study evaluated five Tekniflex® commercial film structures. Two of these had 300µ layers of Topas® COC from Ticona, the technical polymers business of Celanese AG (FSE: CZZ). These two films were coextruded with PP and/or HDPE. The other three film structures had 250µ layers of PVC and barriers of either PVDC (90 g/m²) or PCTFE (15µ and 23µ).

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