Coinjection stretch blow molded container

Details Coinjection stretch blow molded container Coinjection stretch blow molded container

2003-02-19

2009-11-10

Patterson, Marc A (Department: 1794)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S034100, C428S035900, C428S036900, C428S036910, C428S036600

Reexamination Certificate

active

07615272

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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U.S. Appl. No. 09/909,832, filed Jul. 23, 2001, Tai, et al.

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