Transcription of Bonding “Unjoinable” Polymers - DuPont
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Bonding “Unjoinable” Polymers - DuPont
DuPont Packaging & Industrial Polymers Bonding unjoinable Polymers WHITE PAPER. I Hwa Lee, Technical Fellow DuPont Packaging Introduction Although almost everything consumers buy comes in a package, they seldom give packages a second thought . unless there is a problem. Consumers take a lot for granted in their soon-to-be-discarded packages: convenience, product protection, shelf life, damage resistance and tamper evidence, for example. The package must perform on the packager's filling lines, as it moves through distribution, on the store shelf and in the consumer's hands. The diverse requirements throughout the value chain can be met by using multilayer structures containing a variety of Polymers to perform different functions or combinations of functions. Multilayer Packages Every multilayer package needs a structural Figure 1. Typical Barrier Structure polymer that's strong and tough, has the right degree of flexibility or rigidity and provides bulk.
Figure 1. Typical Barrier Structure PE Surlyn® Ionomer inside outside Nylon Bynel® Tie Nylon Bynel® Tie EVOH Nylon I Hwa Lee, Technical Fellow DuPont Packaging
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