초록 ▼

Potable liquid containers including a container, container closure and a closure liner, where the closure liner is formed from a polymeric heterogeneous blend of unvulcanized and uncrosslinked butyl rubber and a thermoplastic polymer are described. The closure liners are used for containers with clo

Potable liquid containers including a container, container closure and a closure liner, where the closure liner is formed from a polymeric heterogeneous blend of unvulcanized and uncrosslinked butyl rubber and a thermoplastic polymer are described. The closure liners are used for containers with closures such as a twist crown, a crown cork or a screw cap, for bottles, jars and the like, and more specifically for beer, juice and soft-drink bottles with closures made of metal or plastics.

대표청구항 ▼

[ We claim:] [1.] A potable liquid container comprising a container, a container closure and a closure liner formed by placing and in-shell or out-shell molding a molten piece of a poylymer liner compound in the closure, the molded closure liner consisting essentially of a heterogeneous blend of unv

[ We claim:] [1.] A potable liquid container comprising a container, a container closure and a closure liner formed by placing and in-shell or out-shell molding a molten piece of a poylymer liner compound in the closure, the molded closure liner consisting essentially of a heterogeneous blend of unvulcanized and uncross-linked butyl rubber and of at least one thermoplastic polymer, wherein the heterogeneous blend of the closure liner consists of areas or layers enriched in butyl rubber alternating with areas or layers enriched in thermoplastic polymer, and wherein the thermoplastic polymer is a high-density polyethylene (HDPE) or mixtures of a high-density polyethylene with another polymer selected from polypropylene (PP), polypropylene-copolymers and -terpolymers, poly(ethylene-vinylalcohol) (EVOH) and mixtures thereof.