{
  "patent_number": "US 2230654",
  "country": "US",
  "title": "The Discovery of Teflon",
  "original_title": "Tetrafluoroethylene polymers",
  "summary": "This 1941 patent describes the creation of polytetrafluoroethylene, a slippery, heat-resistant plastic discovered by accident that became known as Teflon.",
  "what_it_does": "The patent covers the polymerization of tetrafluoroethylene gas into a solid, white, waxy material. This substance is chemically inert, meaning it does not react with most other chemicals, and it possesses an extremely low coefficient of friction. The process involves subjecting the gas to high pressure in the presence of a catalyst to create long chains of carbon and fluorine atoms.",
  "what_it_does_not_cover": [
    "Does not cover the application of the material as a non-stick coating for cookware.",
    "Does not cover the manufacturing process for other fluorinated polymers like PVDF.",
    "Does not cover the specific chemical synthesis of the monomer tetrafluoroethylene itself."
  ],
  "filed": "1939-07-01",
  "granted": "1941-02-04",
  "expires": "1959-07-01",
  "status": "expired",
  "holder": "KINETIC CHEMICALS Inc",
  "holder_url": "https://patentbrief.org/company/kinetic-chemicals-inc",
  "inventors": [
    {
      "name": "Roy J Plunkett",
      "url": "https://patentbrief.org/inventor/roy-j-plunkett"
    }
  ],
  "times_cited": 74,
  "tags": [
    "materials",
    "mechanical",
    "aerospace",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/2230654/teflon-ptfe-polymer",
  "markdown_url": "https://patentbrief.org/patent/us/2230654/teflon-ptfe-polymer/md",
  "google_patents_url": "https://patents.google.com/patent/US2230654",
  "relatedPatents": [
    {
      "patentNumber": "3953566",
      "countryCode": "US",
      "title": "Making Strong, Porous PTFE: The Gore-Tex Process",
      "url": "https://patentbrief.org/patent/us/3953566/gore-tex-expanded-ptfe"
    },
    {
      "patentNumber": "1967861",
      "countryCode": "US",
      "title": "How DuPont Invented Neoprene Synthetic Rubber",
      "url": "https://patentbrief.org/patent/us/1967861/neoprene-synthetic-rubber"
    },
    {
      "patentNumber": "942699",
      "countryCode": "US",
      "title": "How Leo Baekeland Invented Bakelite, the First Synthetic Plastic",
      "url": "https://patentbrief.org/patent/us/942699/bakelite-synthetic-plastic"
    },
    {
      "patentNumber": "2130523",
      "countryCode": "US",
      "title": "How Wallace Carothers Invented Nylon",
      "url": "https://patentbrief.org/patent/us/2130523/nylon-polyamide-carothers"
    },
    {
      "patentNumber": "2929804",
      "countryCode": "US",
      "title": "How Spandex Elastic Fibers Are Chemically Engineered",
      "url": "https://patentbrief.org/patent/us/2929804/spandex-lycra-elastic-fiber"
    }
  ]
}