PACKAGING BAG LAMINATE, PACKAGING BAG, SPOUT-ATTACHED PACKAGING BAG, AND CONTENT-CONTAINED SPOUT-ATTACHED PACKAGING BAG
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Jan 6, 2023
filing date -
Jan 6, 2023
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Abstract
A packaging bag laminate to be used for a packaging bag, a spout-attached packaging bag, and a content-contained spout-attached packaging bag, includes a base layer, an intermediate layer, and a sealant layer that are laminated in this order, the base layer is a stretched film made of polypropylene, the intermediate layer is a multilayer-coextruded film in which support layers mainly made of polyolefin are laminated on two sides of a gas barrier resin layer, and the sealant layer is a film made of one or more materials selected from ethylene homopolymer or ethylene copolymer.
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