Patent ID: 8562215
Filing Date: 2013-10-22
Classification: B32B,B65D

Abstract:
1. A package for granular products, comprising: a parallelepiped container having a base or bottom wall, a top wall, a front wall, a rear wall and two side walls, the container being made of a multilayer material having at least one outer layer made of a stiff polymeric material and at least one inner layer made of an elastic polymeric material, wherein said outer and inner layers are coupled along substantially all of the base or bottom wall and substantially all of the top wall at respective coupling zones, and said package includes non-total coupling zones between said outer and inner layers at said front, rear and side walls, said outer and inner layers being coupled together in such a way to prevent air to enter therebetween, the non-total coupling zones at least extending lengthwise between the coupling zone at the base or bottom wall and the coupling zone at the top wall such that a central area of the container is configured to elastically deform by the inner layer in the non-total coupling zones and to remain stiff by the outer layer when a vacuum is created inside the package.