Peelable composite thermoplastic sealants in packaging films
AssigneeIntercontinental Great Brands LLC
InventorsPanagiotis Kinigakis, Kenneth Pokusa, Gary Albaum, Alexander Jones, Eric Frederickson
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Abstract
A peelable sealing structure includes a sealing layer and one or more optional additional layers. The peelable sealing structure includes a sealing surface that is formable into a peelable seal upon contact with a sealing substrate at all temperatures in a peelable seal temperature range. Moreover, the peelable sealing structure comprises a thermoplastic polymer and an additive dispersed within at least a portion of the thermoplastic polymer with the peelable sealing structure defining the sealing surface.
Claims12
A packaging system having a peelable seal section and a container section, the peelable seal section including a first sealing layer and a second sealing layer such that the first sealing layer contacts the second sealing layer to form a peelable seal, the first sealing layer and the second sealing layer each independently including:
- a thermoplastic polymer;
- and
- an organoclay dispersed within the thermoplastic polymer, wherein the first sealing layer and the second sealing layer have a seal initiation temperature from about 170° F. to about 350° F., the organoclay comprising platelets having an average separation of at least 20 angstroms.
Dependencies are inferred from the claim text.