Abrasion and crack resistant package laminate

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...


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426126, 428336, 428339, 428461, 4284758, 4284761, 428523, B32B 1508, B32B 2708, B32B 2732, B32B 2734




A package laminate is described which is abrasion and crack resistant and particularly suitable for use in wrapping food products. The package laminate is formed with a biaxially oriented nylon film bonded to one side of an inner located metallic foil with an intermediate bonding layer. A smooth abrasion resistant and moisture impermeable layer in the form of a triextrusion product is bonded to the other side of the metallic foil with an intermediate bonding layer. The completed package laminate is characterized by its resistance to cracking from repeated flexure while enabling a straight, predetermined directional tear without a jagged edge.

patent: 3840427 (1974-10-01), Brazier et al.
patent: 3843479 (1974-10-01), Matsunami et al.
patent: 3908070 (1975-09-01), Marzolf
patent: 3972467 (1976-08-01), Whillock
patent: 4015044 (1977-03-01), Yoda et al.


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