Patent ID: 6428648
Filing Date: 2002-08-06
Classification: B32B

Abstract:
A method for producing a well-integrated multilayer material having a first material layer adjacent a second material layer, the second material layer being sparingly compatible with the first material layer, the method comprising:providing the first layer, the first layer being polyethylene; providing the second layer, the second layer being selected from the group consisting of ethylene vinyl alcohol and polyester; and binding the first material layer to the second material layer with a coextruded adhesive layer consisting essentially of 60 to 95 parts of a high viscosity binder component, which is an ethylene homopolymer and 5 to 40 parts of a low viscosity binder component, which is a single neutralized, metal modified ethylene-carboxylic acid copolymer or a polyethylene based adhesive, the low viscosity binder component being capable of binding to the first material layer and the second material layer, the high viscosity binder component being capable of interacting with the low viscosity binder component.