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Machine Design

Barrier TPE Alloys

A new TPE alloy technology is for applications needing package barrier integrity, such as vial stoppers and medical films for IV bags.

Benefits of the material include an oxygen-permeation coefficient range of 2,000 to 20,000 2 .day.atm at 23°C (standard is 50,000 to 90,00 2 .day.atm at 23°C) and a moisture-vapor-transmission rate in the range of 2.3 to 3.8 gm/m 2 .day at 38°C/100% RH. The material boosts shelf life by a factor of 2 to 5. Features of the materials include ease of processing in conventional injection molding, blow molding, and extrusion thermoplastic-processing methods and a 40 to 90 Shore-A hardness range.

GLS Corp., 833 Ridgeview Dr., McHenry, IL 60050, (800) 457-8777,

TAGS: Materials
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