High strength high gas barrier cellular cushioning product

Details High strength high gas barrier cellular cushioning product High strength high gas barrier cellular cushioning product

2007-05-29

2007-05-29

Loney, Donald J. (Department: 1772)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

C428S178000, C206S522000, C206S814000, C493S967000

Reexamination Certificate

active

10648113

ABSTRACT:
An inflatable cushioning article is made from a multilayer film having a seal layer, a gas barrier layer, and a tie layer adhering the seal layer to the gas barrier layer. The cushioning article has a plurality of inflatable chambers, with each of the chambers having a plurality of cells connected in series to one another via inflation channels. Although the inflatable article can be made from relatively thin films, the article exhibits a relatively high burst pressure and can be inflated to, for example 3 psi, and withstand conditions such as 140° F. and high altitude, without film delamination, seal failure, or film rupture. Preferably, the tie layer comprises an anhydride modified polyolefin having an anhydride content of at least 150 ppm.

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