US Patent 11772849 Closure system for pouch or container

A container or pouch made entirely from an elastomer includes a body having a front wall and a rear wall that is connected to the front wall along a peripheral edge, and a closure system that includes a front side having a front sealing profile that includes a male closure element, and a rear side having a rear sealing profile that includes a female closure element and defining a cavity, wherein a centerline extends through the cavity. The rear side includes an inner portion that includes the entire cavity and an outer portion. A thickness of the thickened region measured in a direction parallel to the centerline is less than 35% of a total thickness of the closure system in a closed configuration measured in a direction parallel to the centerline.