Closure plug with bonded gasket

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 39/04 (2006.01) B29C 45/16 (2006.01) B65D 39/08 (2006.01) B65D 53/02 (2006.01)

Patent

CA 2202944

A closure plug for the threaded receipt by the raised neck finish of a container for closing off the neck finish in a liquid-tight fashion includes a closure plug body having an annular flange at one end and opposite thereto an externally threaded portion, the closure plug body being formed out of a thermoplastic material. Assembled to the closure plug body is an annular sealing gasket which is molded out of a thermoplastic elastomer of an EPDM base with polypropylene added. The annular sealing gasket -is integrally bonded to the closure plug body at a molecular level by actually fusing or cross-linking the material of the sealing gasket with the material of the closure plug body.

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