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Selected ecoprofile information for production of PP resin and oriented PP film, packaged for shipment, is shown in Table 4.6. The film data is a weighted average of blown film and cast, tenter-frame oriented film. Production of the resin uses 73.66% of the total energy required (Fig. 4.14). Production of 1.2% contaminated scrap that must be disposed of is incorporated into the calculations [29].
Table 4.7 presents selected ecoprofile information for production of bottle-grade PET resin, PET injection stretch blow-molded bottles, and PET film, packed
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