Patent ID: 8512831
Filing Date: 2013-08-20
Classification: B32B,Y10T

Abstract:
1. A laminate comprising a multi resin layer including at least three layers comprising an adhesive resin layer (a), a barrier resin layer (b), and an adhesive resin layer (a′) coextrusion laminated onto a base paper, said base paper having a coating on the surface consisting of denatured polyethylene imine, such that said adhesive resin layer (a) is contacted with said coated surface of said base paper, said barrier resin layer (b) is contacted with said adhesive resin layer (a), and said adhesive resin layer (a′) is contacted with said barrier resin layer (b), wherein the denatured polyethylene imine is represented by the following formula I or formula II: and that said barrier resin layer (b) consists essentially of ethylene-vinyl alcohol copolymer: wherein R1 and R3 each represent hydrogen, an alkyl group, alkenyl group, benzyl group, or a cyclic hydrocarbon residue; and wherein the multi-resin layer is bondable, at 290° C. or lower at the outlet of the die, onto the base paper without thermal decomposition of the barrier resin layer.