If extruded PET film is quenched fast enough, the surface layer remains amorphous and can be heat sealed on high-speed equipment at 300 F, says Perfecseal, a Bemis Company in Oshkosh, Wis. Bemis has used proprietary processing technology for years to make heat-sealable films using 0.75 to 0.90 I.V. bottle-grade PET as the structural or contact layers in coextruded barrier meat packaging and dual-ovenable tray liners. But heat-sealable PET films are new for pharmaceutical packaging. The films will be monolayer or laminated to foil. Bemis announced a new family of PET/foil films at the Interphex pharmaceutical show in Philadelphia in March. The films are made in New London, Wis., for healthcare packaging that will compete with laminates using Ineos’s Barex polyacrylonytrile resin as a sealant layer. (920) 303-7000 • www.perfecseal.com
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