Easily openable closure for a retortable container having a...

Details Easily openable closure for a retortable container having a... Easily openable closure for a retortable container having a...

B - Operations, Transporting

65

D

B65D 51/00 (2006.01) B32B 15/08 (2006.01) B65D 17/50 (2006.01) B65D 53/06 (2006.01)

Patent

CA 2489218

A retortable, easily openable closure of the type having a metal end and a membrane closure heat-sealed thereto, wherein the metal end has a coating of a heat-seal composition comprising a food-compatible metal-coating composition blended with polypropylene. The polypropylene disperses within the food-compatible metal-coating composition during curing of the coating on the metal end such that an outer surface of the coating defines a multitude of separate, spaced islands of polypropylene dispersed within the food-compatible metal-coating composition so as to form bonding sites. The membrane closure's lower surface has a heat-seal layer of polypropylene for sealing to the coating on the metal end.

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