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Pressure sensitive adhesive constructions

  • US 6,299,956 B1
  • Filed: 12/04/1998
  • Issued: 10/09/2001
  • Est. Priority Date: 02/05/1985
  • Status: Expired due to Fees
First Claim
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1. A pressure-sensitive adhesive construction comprising a substrate and a pressure sensitive adhesive layer wherein the adhesive layer has an upper surface and a lower surface, the upper surface of the adhesive layer is in contact with the substrate, and the lower surface of the adhesive layer has been roughened to a roughness of at least 10 Sheffield units by direct contact of the lower surface of the adhesive layer with a rough second surface.

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