Patent ID: 6110548
Filing Date: 2000-08-29
Classification: B32B,B65D,Y10T

Abstract:
A container laminate structure consisting essentially of:a substrate having inner and outer surfaces;an outer layer of heat-sealable polymer material coated on said outer surface of said substrate;a polyamide polymer layer disposed on said inner surface of said substrate to provide mechanical strength and thermal resistance and improved durability to said laminate;a layer of high barrier ethylene vinyl alcohol copolymer disposed interior to said polyamide polymer layer, for preventing scalping of flavor oil from contents of said container, said layer of high barrier ethylene vinyl alcohol copolymer having a coating weight between 0.5-4 lbs. per 3,000 square feet; anda thin tie layer coated on an inner surface of said high barrier ethylene vinyl alcohol copolymer layer and a thin layer of heat-sealable polymer material coated on said thin tie layer to form an inner surface of said container, and an enabling skiving of side seams of said container and sterilizing of said laminate with hydrogen peroxide,wherein said high barrier ethylene vinyl alcohol copolymer layer is 27-32 mole % ethylene comonomer.