Stephen Louis Jacobs

US Patent:

6692800, Feb 17, 2004

Filed:

Oct 25, 2000

Appl. No.:

09/696620

Inventors:

Stephen Alan Jacobs - Palatine IL

Assignee:

The Quaker Oats Company - Chicago IL

International Classification:

B29D 2200

US Classification:

428 342, 428526, 428530, 428533, 4273722, 4273883, 4273855, 427458, 427421, 4274301

Abstract:

A method for reducing the migration of aldehyde compounds present in packaging material the interior of a package formed by said packaging material, said method comprising: (a) selecting an initial packaging sheet stock used for forming a package having an interior in which an aldehyde sensitive product can be contained, wherein said initial packaging sheet stock has a first surface that forms the interior wall of said formed package, wherein said initial packaging sheet stock has a second surface that forms the exterior wall of said formed package, and wherein said initial packaging sheet stock contains one or more aldehyde compounds that are capable of migrating from said initial packaging sheet stock to said package interior or exterior; (b) preparing an amine-containing composition comprising an amine that chemically reacts with said aldehyde compounds to form a substantially non-migrating compound; and (c) applying said amine-containing composition onto said first surface of said initial packaging sheet stock in a manner such that the amount of said amine applied to said first surface is at least a molar amount stoichiometrically necessary to chemically react with substantially all of said aldehyde compounds present in said initial packaging sheet stock that are capable of migrating from said initial packaging sheet stock to said package interior or exterior, thereby forming a coated packaging material.