MULTILAYER CONTAINER AND METHOD FOR PRODUCING MULTILAYER CONTAINER
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Dec 9, 2022
filing date -
Dec 9, 2022
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Abstract
Provided are a multilayer container and a method for producing a multilayer container. The multilayer container includes: a polyolefin layer containing an acid-modified polyolefin and an acid-unmodified polyolefin; and a polyamide resin layer being in contact with the polyolefin layer and containing a polyamide resin, which contains a polyamide resin (a) containing diamine-derived structural units and dicarboxylic acid-derived structural units, 70 mol % or more of the diamine-derived structural units being derived from meta-xylylenediamine, and 30 mol % or more of the dicarboxylic acid-derived structural units being derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 20 carbons. The acid-unmodified polyolefin has a melt flow rate of 20 g/10 minutes or greater, the polyamide resin contained in the polyamide resin layer has a melt flow rate of 5 g/10 minutes or greater, and a difference between a melt flow rate of the polyolefin layer and a melt flow rate of the polyamide resin layer is in a range of from 10 to 53 g/10 minutes.
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