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Systems and methods for forming laminates with patterned microwave energy interactive material

  • US 9,216,564 B2
  • Filed: 08/02/2012
  • Issued: 12/22/2015
  • Est. Priority Date: 08/03/2011
  • Status: Active Grant
First Claim
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1. A method of forming a laminate comprising a pattern of microwave interactive material, the method comprising:

  • forming a compound laminate comprising first, second and third webs, whereinthe third web is positioned between the first and second webs,the third web comprises microwave interactive material and a plurality of lines of disruption at least partially defining first and second pluralities of sections of the third web,the forming of the compound laminate comprises bonding both of the first and second pluralities of sections of the third web to the second web with adhesive material, andthe bonding of both of the first and second pluralities of sections of the third web to the second web is comprised of the second plurality of sections of the third web being adhesively bonded to the second web more securely than the first plurality of sections of the third web are adhesively bonded to the second web, wherein;

    the bonding of both of the first and second pluralities of sections of the third web to the second web with adhesive material is comprised of the adhesive material between the second and third webs being arranged in a pattern of adhesive segments so that there are unbonded areas between the second and third webs, andthe unbonded areas are configured so that the second plurality of sections of the third web are adhesively bonded to the second web more securely than the first plurality of sections of the third web are adhesively bonded to the second web; and

    then separating the compound laminate into parts comprising a first laminate and a second laminate, whereinthe first laminate comprises the first web and the first plurality of sections of the third web,the second laminate comprises the second web and the second plurality of sections of the third web, andthe separating comprisesadhesive bond failure between the second web and the first plurality of sections of the third web,relative movement between the first and second webs, andthe adhesive bond failure being responsive to the relative movement between the first and second webs.

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