{
  "patent_number": "US 12031028",
  "country": "US",
  "title": "How LG Chem Makes Plastic Films That Block UV Light",
  "original_title": "Polyamide resin film and resin laminate using the same",
  "summary": "A specialized plastic film made of alternating chemical segments that blocks harmful ultraviolet light while remaining perfectly clear.",
  "what_it_does": "This patent describes a high-performance plastic film made from a polyamide resin. The resin is engineered with a specific backbone structure where two different types of aromatic amide segments alternate. This precise molecular arrangement allows the material to absorb ultraviolet light at 388 nm while maintaining high transparency, measured as a haze value of 1.5% or less. The film is designed to be very thin, around 50 micrometers, yet it effectively filters out UV radiation, which is critical for protecting sensitive components behind the film.",
  "what_it_does_not_cover": [
    "Does not cover films that do not use an alternating backbone structure of two distinct aromatic segments.",
    "Does not cover materials where the UV transmittance at 388 nm is higher than 15% for a 50-micrometer thickness.",
    "Does not cover films with a haze value greater than 1.5%.",
    "Does not cover standard polyamides that lack the specific molecular weight or viscosity requirements defined in the claims."
  ],
  "filed": "2019-12-26",
  "granted": "2024-07-09",
  "expires": null,
  "status": "active",
  "holder": "LG Chem Ltd",
  "holder_url": "https://patentbrief.org/company/lg-chem-ltd",
  "inventors": [
    {
      "name": "Youngseok Park",
      "url": "https://patentbrief.org/inventor/youngseok-park"
    },
    {
      "name": "Young Ji Tae",
      "url": "https://patentbrief.org/inventor/young-ji-tae"
    },
    {
      "name": "Bi Oh RYU",
      "url": "https://patentbrief.org/inventor/bi-oh-ryu"
    },
    {
      "name": "Il Hwan Choi",
      "url": "https://patentbrief.org/inventor/il-hwan-choi"
    },
    {
      "name": "Soonyong PARK",
      "url": "https://patentbrief.org/inventor/soonyong-park"
    }
  ],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "materials",
    "semiconductors"
  ],
  "abstract": "The present invention relates to a polyamide resin film having improved UV shielding function by using a polyamide resin having a backbone chain of alternative structure of two types of polyamide segments; and a resin laminate using the polyamide resin film.",
  "url": "https://patentbrief.org/patent/us/12031028/starship-eclss",
  "markdown_url": "https://patentbrief.org/patent/us/12031028/starship-eclss/md",
  "google_patents_url": "https://patents.google.com/patent/US12031028",
  "relatedPatents": []
}