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Modular carpet systems

  • US 9,988,760 B2
  • Filed: 05/03/2012
  • Issued: 06/05/2018
  • Est. Priority Date: 05/04/2011
  • Status: Active Grant
First Claim
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1. A modular carpet system, comprising:

  • a first component comprising a carpet tile, the carpet tile comprising a face and a backing, wherein the backing is for being positioned in a facing relationship with an installation surface, wherein the backing comprises a polymer having at least 50% amorphous content, wherein the polymer having at least 50% amorphous content comprises polyvinyl butyral,wherein the carpet tile is operative for remaining dimensionally stable under adverse conditions, the adverse conditions comprising at least one ofa moisture vapor emission rate of at least about 4 lb/24 hr/1000 sq. ft.,an in situ relative humidity of at least about 80%, anda surface moisture pH of at least about 8; and

    a second component comprising an adhesive tape piece separate from the carpet tile, wherein the adhesive tape piece is for securing the carpet tile to at least one of an adjacent carpet tile and the installation surface, wherein the adhesive tape piece comprises a pressure-sensitive adhesive supported on a polymer film, the pressure-sensitive adhesive comprising a silicone-based adhesive having a shear strength of from about 21.7 lb-f/sq. in. to about 33.3 lb-f/sq. in., and an adhesive tack of greater than 3.5 lb-f/sq. in. prior to exposure to the adverse conditions, and the polymer film having a thickness of from about 1 mil to about 5 mil, and a tensile strength of from about 20,000 to about 40,000 lb/sq. in.,wherein the adhesive tape piece is for being positioned beneath the carpet tile, so that the adhesive tape piece is disposed at least partially between the backing of the carpet tile and the installation surface, and so that the pressure-sensitive adhesive of the adhesive tape piece is in contact with the backing of the carpet tile, wherein the pressure-sensitive adhesive of the adhesive tape piece in contact with the backing of the carpet tile secures the carpet tile to the at least one of the adjacent carpet tile and the installation surface under the adverse conditions.

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