Patent ID: 8398306
Filing Date: 2013-03-19
Classification: B31B,B65D

Abstract:
1. A reclosable flexible package, comprising: opposed front and rear panels joined together to define a cavity enclosed by opposite side portions and a bottom portion of the package, each of the front and rear panels having an interior face and formed from a film substrate including nano-sized particles of montmorillonite; an openable/removable non-reclosable closure provided on the interior faces of both the front and rear panels, located at an upper end portion of the package opposite the bottom portion and extending between opposite side portions of the package, adapted to define a package mouth when opened or removed; an openable reclosable closure comprising a reclosable coating, provided from a cured acrylic adhesive, disposed on the interior faces of both the front and rear panels having the nano-sized particles of montmorillonite therein, extending between the opposite side portions of the package at a location below the openable/removable non-reclosable closure, the openable reclosable closure having a peel force of about 100 g/inch to about 700 g/inch and a tack value up to about 5 psi when pre-loaded with 4.5 pounds and up to about 15 psi when preloaded with 10 pounds so that the openable reclosable closure is adapted to be manually pulled open and reclosed for selectively opening and closing said mouth after said openable/removable non-reclosable closure has been opened or removed, the reclosable closure includes substantially continuous bands of reclosable coating oppositely aligned on the interior faces of the front and rear panels, wherein the peel force and tack value are effective so that the bands can be pressed into mutual adhering contact and manually pulled apart more than once, and the reclosable coating is effective so that it is not deadened from exposure to detritus such that the peel force remains between about 100 g/inch to about 700 g/inch after contamination with detritus; an openable non-reclosable heat seal between contacting portions of the front and rear panels extending between the opposite side portions of the package at a location below the reclosable closure; and a bond of the cured acrylic adhesive to the film substrate including nano-sized particles of montmorillonite such that the cured acrylic adhesive does not delaminate therefrom upon first opening of the package even though the cured acrylic adhesive has a stronger bond strength to itself than to the film substrate.