MULTILAYER HOLLOW MOLDED BODY
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United States of America Patent
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Dec 3, 2015
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Dec 26, 2014
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Abstract
The present invention relates to a multilayer hollow molded body, which has sufficiently high barrier properties, burst resistance and heat resistance, is also excellent in terms of impact resistance, and can be preferably used as a fuel transportation piping material for transporting high-temperature liquid fuel, etc. The multilayer hollow molded body of the present invention has at least one aliphatic polyamide layer (A) and at least one barrier layer (B), wherein the aliphatic polyamide layer (A) consists of a resin composition comprising an aliphatic polyamide (a) as a main component, and the barrier layer (B) consists of a resin composition comprising an ethylene-vinylalcohol copolymer (EVOH) and a semi-aromatic polyamide (b).
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