Patent ID: 6302321
Filing Date: 2001-10-16
Classification: B29C,B29K,B29L,B31C,B32B,B65D

Abstract:
A sealed composite container for products, comprising:a tubular body member comprising at least one paperboard body ply and having an inner surface;a liner ply adhered to the inner surface of said tubular body member and comprising a barrier layer, at least one end of said body member and said liner ply being rolled outwardly to form a rim and exposing said liner ply; anda lid operatively positioned adjacent to said rim and heat sealed thereto, said lid comprising,a barrier layer for preventing the passage of undesirable substances into or out of the container, anda dual-layer sealant composition operatively connected to said barrier layer, said sealant composition comprising,a base layer, anda frangible layer adjacent to said base layer, said frangible layer being positioned so as to face said rim for heat sealing thereto, wherein said frangible layer consists essentially of a polymer selected from the group consisting of ethylene-methyl acrylate copolymers, ionomeric polymers, ethylene-vinyl acetate copolymers, ethylene-methacrylic acid copolymers, and ethylene-acrylic acid copolymers.