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

B - Operations, Transporting

65

D

B65D 81/03 (2006.01) B32B 3/28 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2450275

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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