Diiocyanate-scavenging packaging laminates

[0043]FIG. 1 illustrates one preferred embodiment of a laminate according to the present invention. In this drawing, laminate 10 comprises an exterior film 100, a polyurethane adhesive layer 200, and a multilayer interior film 300 comprising an adhesive-contact layer 301, a diisocyanate-scavenging layer 302 and a product-contact layer 303.

[0044]In the following Example 1, the thickness of the total exterior film 100 vary between 11.2 and 12.2 micron (0.44 and 0.48 mil), or had a total basis weight of 9.5 lbs. / ream, the total thickness of the polyurethane adhesive 200 was between 1.27 and 12.7 micron (0.05 and 0.5 mil), or had a basis weight of 1.2 lbs. / ream, and the total thickness of multilayer interior film 300 was about 63.5 micron (2.5 mil) or had a total basis weight of 36.22 lbs. / ream. This example is intended to be representative of a specific embodiment of the invention and is not intended to be limiting to the scope of the invention.

[0045]The Example 1 had a structure and layer compositions as described below and as illustrated in FIG. 1.[0046]Exterior Film 100: 100 wt.-% of a 44 gauge biaxially oriented polyethylene terephthalate crystalline polyethylene terephthalate (OPET)-SARAfil TFCO (Polyplex Corporation, Uttar Pradesh, India).[0047]Polyurethane Adhesive 200: 100 wt-% of a solventless, two-component polyurethane adhesive-MOR-FREE™ 403A / MOR-FREE™ C-117 (The Dow Chemical Company, Midland, Mich.).[0048]Adhesive-contact layer 301:90 wt.- % of a low density polyethylene (LOPE) having a melt index of 2.3 gram / 10 min, a density of 0.929 gram / cm3 and a melting point of 11T C-ExxonMobil™ LOPE LD 129.24 (ExxonMobil Chemical Company, Houston, Tex.), and 10 wt.- % of a linear low density polyethylene (LLDPE) having a melt index of 0.9 gram / 10 min, a density of 0.921 gram / cm3 and a melting point of 120 C-DOWLEX™ 2645G (The Doer Chemical Company, Midland, Mich.).[0049]Diisocyanate-Scavenging Layer 302: 50 wt.- % of an ...