Multilayered package with barrier properties

Details Multilayered package with barrier properties Multilayered package with barrier properties

2007-01-05

2010-02-09

Nguyen, Khanh (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

C264S171280, C264S209100

Reexamination Certificate

active

07658881

ABSTRACT:
The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester resin, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a polyamide material (e.g., MXD6). The blend optionally may further comprise (iii) an oxygen scavenging material. The present invention also provides containers (e.g., containers formed by expansion of preforms) having a multilayered body-forming portion including: a core layer comprising the aforementioned blend; and inner and outer layers of a formable polymer composition. The present invention also provides methods of making such containers.

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European Search Report for EP07107462 dated Aug. 16, 2007 [4 pages].

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