Appeel® 1181 - Dupont - #1

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04/30/2009 02:52:40 PM Copyright E.I. du Pont de Nemours and Company, Inc. 1 of 3 DuPont Packaging & Industrial Polymers DuPont™ Appeel® 1181 Appeel® resins Product Data Sheet Description Product Description Appeel® 1181 is a modified ethylene vinyl acetate resin designed to function as a sealing layer for lidding applications. It is most often suggested to provide peelable seals over a broad temperature range to a number of container materials including PP, PET, PS and aluminum. It will also provide destruct seals to PVC and PE. Appeel® 1181 is available in pellet form for use in conventional extrusion and coextrusion equipment designed to process polyethylene resins Restrictions Material Status
Commercial: Active Typical Characteristics Uses
Lidding Sealant Features High clarity and low seal initiation temperature Typical Properties Physical Nominal Values Test Method (s) Density () 0.96 g/cm³ ASTM D792 ISO 1183 Melt Flow Rate (190°C/2.16kg) 8.9 g/10 min ASTM D1238 ISO 1133 Thermal Nominal Values Test Method (s) Melting Point (DSC) 75°C (167°F) ASTM D3418 ISO 3146 Vicat Softening Point () 49°C (120°F) ASTM D1525 ISO 306 Heat Seal Evaluation The performance of any sealant resin should be evaluated within the context of the application. The sealant is designed to bond to particular substrate(s). Many variables can affect seal strength, including the physical properties of the substrate being sealed to, thickness, flange or surface design, heat seal temperature, dwell time and pressure. The condition and type of the sealing equipment used, such as roller sealers versus platen seal mechanisms can make a significant difference. In most cases sealant peel strength is used as a measure of performance. Although this is a convenient test, peel strength is affected not only by substrate adhesion but also by peel angle, separation rate, ambient temperature, tensile and modulus properties of the materials, and often by the time elapsed since the formation of the bond. If sealant peel strength is used as a measure of sealant performance, it is imperative that peel strength be evaluated not only at the time of initial heat sealing the lid to the substrate, but throughout the life of the product and under all the conditions to which the sealant will be exposed. Only then does peel strength provide a reliable indication of adhesive performance in the specific application. Processing Information General Maximum Processing Temperature 238°C (460°F)