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Controlled delamination of laminate structures having enclosed discrete regions of a material

  • US 20020095127A1
  • Filed: 12/20/2001
  • Published: 07/18/2002
  • Est. Priority Date: 12/28/2000
  • Status: Abandoned Application
First Claim
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1. A laminate structure comprising:

  • a first substrate containing a thermoplastic polymer and a second substrate containing a thermoplastic polymer, wherein the thermoplastic polymer of said first substrate is fused together with the thermoplastic polymer of said second substrate to form fused portions and unfused portions located between said fused portions, said unfused portions defining elongated pockets that contain discrete regions of particles, said pockets having a length-to-width ratio of greater than about 2, wherein said fused portions define at least one perimeter region and at least one inner region, said inner region being bonded to an extent such that said inner region is capable of delaminating upon the application of a force thereto, said perimeter region withstanding substantial delamination upon the application of said force.

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