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AssigneePechiney Emballage Flexible Europe
InventorsYong Joo Kim, Ray Germonprez, Roger L. Kaas, Atul Mehta
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Improved oxygen barrier and oxygen absorbing compositions and structures comprising blends of xylylene group-containing polyamides and cobalt octoate and xylylene group-containing polyamides, polyesters and cobalt octoate are disclosed and claimed. These blends have superior barrier properties and clarity obtained by controlling the degree of orientation and the amount of cobalt. These novel blends are used as single layers and as the core layer in multiple layer films, structures and articles. When used in multiple layer structures, the adjacent layers are comprised of polyesters and/or polyamides. The structures made from the blends of the present invention have a clarity that is superior to structures previously known in the art.
An improved oxygen barrier and oxygen absorbing multiple layer structure comprising a core layer comprising a polyester, a blend of a xylylene group-containing polyamide and at least about 49 ppm of a transition metal catalyst disposed between two polyester layers.
An improved oxygen barrier and oxygen absorbing multiple layer structure comprising a core layer comprising a blend of a polyester, MXD6 nylon and at least about 49 ppm of cobalt disposed between two layers of PET.
An improved oxygen barrier and oxygen absorbing multiple layer structure comprising a blend of a first polyester, a xylylene group-containing polyamide and at least about 49 ppm of a transition metal catalyst disposed between two layers of a second polyester, wherein, the structure is oriented to a degree so that the domain of the xylylene group-containing polyamide increases in size up to less than the wavelength of light.
A method for making an improved oxygen barrier and oxygen absorbing multiple layer container comprising the steps of:
Dependencies are inferred from the claim text.