TPE Alloys minimize oxygen and moisture vapor transmission.

Press Release Summary:

Design to extend products' shelf-life, TPE alloys provide barrier to oxygen and moisture vapor transmission in food, beverage, and medical packaging industry applications. Some grades are translucent, and technology ranges in hardness from Shore A 40-90. Standard TPE oxygen barrier is typically in the range of 50,000-90,000².day.atm @ 23C, and moisture vapor transmission rate (MVTR) varies from 2.3-3.8 g/m².day @ 38C/100% RH.

Original Press Release:

GLS Corporation Introduces New Line of Barrier TPE Alloys

For Special Barrier Applications in Food, Beverage, and Medical Packaging McHENRY, IL (September 25, 2006) - GLS Corporation, the global leader in high performance thermoplastic elastomers (TPEs), is introducing a new TPE alloy technology suite that features excellent barrier properties. Target applications in food and beverage packaging include beverage closures, flexible food packaging films, and other storage containers, as well as medical applications requiring package barrier integrity such as vial stoppers and medical films for IV bags. According to GLS spokesman Walter Ripple, Global Director of Sales & Marketing, "Customers have been seeking TPEs with barrier properties for some time, a property not inherent in many TPE technologies. GLS has recently developed a multiple technology line of barrier TPEs that satisfy these demanding requirements. The technology will be available globally. " The key benefit of this technology is barrier to oxygen and moisture vapor transmission rate (MVTR). The oxygen permeation coefficients of the new TPE alloys range from 2,000 to 20,000².day.atm @ 23C. Standard TPE oxygen barrier is typically in the range of 50,000 to 90,000².day.atm @ 23C. And the MVTR is in the range of 2.3 to 3.8 g/m².day @ 38C/100% RH. The use of this technology could provide a boost in 2X to 5X increase in shelf-life over conventional materials, and covers a broad range to accommodate packaging and storing a wide variety of food, beverage, and medical products. Conventional barrier packaging typically requires thermoset rubbers, separate barrier layers, or second-step barrier packaging operations to provide the required barrier properties. These new TPE alloys provide an excellent alternative to those processes. Special features of the grades include ease of processing in conventional injection molding, blow molding, and extrusion thermoplastic processing methods, and at a very consistent quality. Some of the grades offered are translucent which could be great value in aesthetic appeal of packaging and are easy to color. The technology ranges in hardness from Shore A 40 to 90. The company reports that while there are several compounded grades of the new barrier TPE, many applications will require specially-tailored compounds to ensure a perfect barrier and other properties needed for its end use. GLS Corporation specializes in the manufacture of application-specific custom formulated soft and ultra-soft thermoplastic elastomers (TPEs) for injection molding and extrusion. GLS has supplied specialty TPEs to the industry since 1979, and is recognized as a global leader in TPE technology solutions. Specific products sold by GLS include proprietary DYNAFLEX® TPE compounds based on KRATON® polymers (available in injection molding and extrusion, as well as medical and FDA grades); VERSAFLEX® TPE specialty alloys (available in soft touch, lightweight, ultra-soft, ultra-clear and overmolding grades); VERSALLOY® TPV alloys; and VERSOLLAN(TM) TPU alloy compounds. GLS is also the exclusive distributor of KRATON® compounds and polymers for the compounding market in the United States, and also distributes KRATON compounds and polymers globally. Applications for these materials are found in consumer, medical, sports and leisure, automotive, lawn and garden, appliance, kitchen tool, power tool, personal care and industrial markets, among others. For more information on the new Barrier TPE Alloys, contact: Marketing Department, GLS Corporation, 833 Ridgeview Drive, McHenry, IL 60050-7050. Telephone: (815) 385-8500 or (800) 457-8777. Fax: (815) 385-8533. E-mail: Web: DYNAFLEX, VERSAFLEX and VERSALLOY are registered trademarks of GLS Corporation. DYNAFLEX compounds contain KRATON Polymers. KRATON is a registered trademark of KRATON Polymers U.S. LLC. VERSALLOY is a DSM - GLS alliance product; the name VERSALLOY is a trademark of GLS Corporation. VERSOLLAN is a trademark of GLS and contains high performance thermoplastic urethanes.

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