作者: Peter Robert Joseph Ibbotson
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摘要: Biodegradable polymeric multi-layer substrates in which the tie layer or layers comprise a mixture of at least polymers forming on either side wherein grades said are selected such that their melt flow indices and viscosities similar requiring grade one polymer within to be different from same polymer(s) comprising other substrate adjacent layer. The inclusion higher melting point outer allows subsequently peeled article it has been sealed.