Patent ID: 6884206
Filing Date: 2005-04-26
Classification: B32B,B65D,Y10T

Abstract:
1. A method of producing a packaging laminate for a packaging container comprising a wall and an emptying opening including a through-hole penetrating the wall, the through-hole being covered on the outside of the container by a first outer layer of thermoplastic and on the inside of the container by a second outer layer comprising aluminum foil and a layer of thermoplastic, the first outer layer and second outer layer being releasably sealed to each other within the region of the opening contour of the through-hole by a pull or opening strip on the outside of the wall, the method comprising: providing a web of paper or paperboard with through-holes; covering the through-holes on a first side of the web with a first outer layer of a thermoplastic; and then covering the through-holes on a second side of the web with a second outer layer comprising aluminum foil and a layer of thermoplastic such that the first outer layer and second outer layer are sealed to each other within the regions of the opening contours of the through-holes by a sealing- or lamination layer extruded between the first outer layer and second outer layer.