Patent ID: 6143113
Filing Date: 2000-11-07
Classification: B32B,C08K,D21H,Y10T

Abstract:
A method of producing a repulpable corrugated paperboard comprising:a) providing paperboard sheet having opposed first and second surfaces,b) coating at least one of said surfaces with a coating composition which dries to form a water-resistant, grease resistant, water vapor permeable coating,c) drying said composition to form a repulpable, water-resistant, grease-resistant, water vapor permeable coated paperboard liner,d) adhesively securing a water vapor impermeable corrugating medium between a pair of paperboard liners, at least one of said liners being a said coated paperboard liner, with a water-based adhesive, ande) curing said adhesive, allowing water vapor of said water-based adhesive to escape through said at least one liner, wherein said coating causes said liner to have a water vapor permeability that is high enough to permit said adhesive to dry by allowing said water vapor to escape.