Pechiney Emballage Flexible Europe

American National Can Company

Ray Germonprez

Yong J Kim

Roger L Kaas

Atul Mehta

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.

Barrier compositions and articles made therefrom

Novel blends of (i) PET, PBT, CoPET, CoPBT or mixtures thereof with (ii) nylon, wherein component (i) is from a catalyst system based on antimony and germanium, or has virtually no residual cobalt and manganese are disclosed and claimed. These blends have superior barrier properties and clarity. The clarity thereof is further enhanced by adding cobalt octoate to the blend. Articles from such blends are also disclosed and claimed. Novel blends of nylon and cobalt octoate which exhibit superior barrier properties are also disclosed and claimed, as well as articles therefrom. And, multilayer structures and articles therefrom having a core layer of a blend of (i) PET, PBT, CoPET, CoPBT or mixtures thereof, and, (ii) nylon, and optionally (iii) cobalt octoate, are also disclosed and claimed.

Growing community of inventors

Neenah, WI, United States of America

Ray Germonprez