Patent ID: 7819266

Claim:
A container sealing material comprising a liner sheet, a sealant sheet, and an interlayer portion bound therebetween; the liner sheet having a closure-contacting surface and a tacking surface, the liner sheet comprising at least one layer of a compressible material; the interlayer portion having a first tacking surface and a second tacking surface; the sealant sheet having a tacking surface and a heat-sealable surface; the tacking surface of the liner sheet being bound to the first tacking surface of the interlayer portion by a first layer of wax; the tacking surface of the sealant sheet being bound to the second tacking surface of the interlayer portion by a second layer of wax; at least one of the tacking surface of the liner sheet and the first tacking surface of the interlayer portion being capable of absorbing a sufficient amount of liquid wax from the first layer of wax to cause the liner sheet to release from the interlayer portion when the first layer of wax is melted; and at least one of the tacking surface of the sealant sheet and the second tacking surface of the interlayer portion being capable of absorbing a sufficient amount of liquid wax from the second layer of wax to cause the sealant sheet to release from the interlayer portion when the second layer of wax is melted; wherein the liner sheet and the sealant sheet both release from the interlayer portion when sufficient heat is applied to the container sealing material to bond the heat-sealable surface of the sealant sheet to a container finish with which it is in contact, thereby leaving the interlayer portion loosely disposed between the sealant sheet and the liner sheet.