Closure and package with induction seal and RFID tag

A closure that includes:

• a plastic shell having a skirt for securement to a container neck finish,
• a seal disk within said closure, said seal disk including at least a metal an electrically conductive layer and a plastic layer,
• said electrically conductive layer including a circumferentially continuous outer periphery overlying an outer periphery of said plastic layer and an inner portion within said outer periphery contoured as an rf antenna, and
• an RFID tag on said seal disk electrically connected at least to said inner portion of said electrically conductive layer.

A closure that includes:

• a plastic shell having a skirt for securement to a container neck finish,
• a seal disk within said closure, said seal disk including a plastic disk substrate and an electrically conductive layer disposed on said substrate,
• said electrically conductive layer including a circumferentially continuous outer periphery overlying a periphery of said plastic disk substrate and an inner portion within said outer periphery contoured as an rf antenna,
• an RFID tag on said seal disk electrically connected at least to said inner portion of said electrically conductive layer, and
• a liner disk disposed between said seal disk and said closure, said liner disk being secured at least to said continuous outer periphery of said electrically conductive layer by an adhesive layer that is adapted to evaporate upon application of electrical energy to said outer periphery of said electrically conductive layer.

A seal disk for placement in a closure and container package, which includes:

• a plastic substrate disk having a circular outer periphery,
• an electrically conductive layer on said plastic substrate disk having a circumferentially continuous outer periphery overlying said outer periphery of said plastic substrate disk and an inner portion within said outer periphery structured as an rf antenna,
• said outer periphery of said plastic substrate disk underlying said outer periphery of said electrically conductive layer being adapted to melt and to bond said seal disk to a container neck finish upon application of electrical energy to said outer periphery of said electrically conductive layer, and
• an RFID tag on said seal disk electrically connected at least to said inner portion of said electrically conductive layer.