{
  "patent_number": "US 5401560",
  "country": "US",
  "title": "How to Make Durable Non-Slip Surfaces Using Electron Beam Curing",
  "original_title": "Polymer backed material with non-slip surface using E-beam cured urethane binder",
  "summary": "A method for creating flexible, non-slip materials by bonding mineral grit to plastic sheets using a special radiation-cured glue that stays strong even when stretched.",
  "what_it_does": "This patent describes a way to create a non-slip material by gluing abrasive mineral particles onto a flexible plastic backing. The key is using a specific type of polyurethane adhesive that is cured—or hardened—using an electron beam. Because the adhesive is radiation-cured, it forms a strong, flexible bond that allows the entire sheet to be stretched or thermoformed into complex shapes without the grit falling off or the layers separating. This is useful for things like safety flooring or grip pads that need to wrap around curved surfaces.",
  "what_it_does_not_cover": [
    "Does not cover non-slip materials that use heat-cured or air-dried adhesives instead of radiation-cured binders.",
    "Does not cover materials where the abrasive particles are embedded into the plastic rather than bonded to the surface.",
    "Does not cover adhesives that lack the specific blend of polyester urethane acrylate resin and the defined monomers.",
    "Does not cover applications where the material cannot maintain at least 125% elongation before tearing."
  ],
  "filed": "1993-05-17",
  "granted": "1995-03-28",
  "expires": "2013-05-17",
  "status": "expired",
  "holder": "Norton Co",
  "holder_url": "https://patentbrief.org/company/norton-co",
  "inventors": [
    {
      "name": "David E. Williams",
      "url": "https://patentbrief.org/inventor/david-e-williams"
    }
  ],
  "times_cited": 25,
  "tags": [
    "materials",
    "mechanical",
    "consumer_electronics"
  ],
  "abstract": "Non-slip laminatable materials are provided by coating a polymer sheet backing with mineral particles adhered to the backing by a radiation curable adhesive.",
  "url": "https://patentbrief.org/patent/us/5401560/polymer-backed-material-with-non-slip-surface-using-e-beam-cured-urethane-binder",
  "markdown_url": "https://patentbrief.org/patent/us/5401560/polymer-backed-material-with-non-slip-surface-using-e-beam-cured-urethane-binder/md",
  "google_patents_url": "https://patents.google.com/patent/US5401560",
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}