Patent ID: 6692800
Filing Date: 2004-02-17
Classification: D21H,Y10T

Abstract:
An improved paperboard stock prepared from recycled paper that can be used to form a package having an interior in which an aldehyde sensitive product can be contained, wherein said paperboard packaging sheet stock has two primary surfaces, a first surface that acts to form an interior wall of said package, and a second surface located on an opposite side of the paperboard packaging sheet stock opposite from the first surface, wherein said second surface forms an exterior of said package, and wherein said paperboard material contains an aldehyde compound therein, wherein the improvement comprises including in said paperboard stock an amine that chemically reacts with said aldehyde compound to form a substantially non-migrating reaction product, wherein the minimum amount of said amine present in said paperboard stock is the molar amount stoichiometrically necessary to chemically react with substantially all of said aldehyde compound.