Coinjection stretch blow molded container
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United States of America Patent
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Nov 10, 2009
Grant Date -
Jan 22, 2004
app pub date -
Feb 19, 2003
filing date -
Feb 15, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a coinjection stretch blow-molded container having a layer of thermoplastic polyester (A) that has specific properties and a layer of an ethylene-vinyl alcohol copolymer resin composition (B) that includes specific minor components and has specific properties, and the thickness ratio of the layer of thermoplastic polyester (A) to the layer of an ethylene-vinyl alcohol copolymer resin composition (B) (layer (A)/layer (B)) in the container body is in the specific range. The coinjection stretch blow molded container of the present invention has excellent gas barrier properties against, for example: oxygen and carbon dioxide; moisture-proofing properties; flavor-retention properties; flavor-barrier properties; and impact delamination resistance. In addition, the coinjection stretch blow molded container of the present invention has a good appearance and can be stably produced in long-run working lines.
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