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DowPatent grant

Dow was granted a patent for durable multilayer film compositions

What happened

In September 2026 Dow patented ionomer-based materials for multilayer films and finished articles used in packaging and other manufactured products.

Source

patents.google.comSep 22, 2026

US patent US12742066

Compositions, multilayer films formed from such compositions, and articles

Abstract

Embodiments of the present invention relate to compositions, multilayer films, and articles. In one aspect, a composition comprises (a) an ionomer that is an acid copolymer comprising ethylene and at least one of acrylic acid and methacrylic acid, wherein a portion of the acid groups in the acid copolymer are neutralized by metal ions and are carboxylic acid salts, and wherein the acid copolymer, prior to neutralization of acid groups by metal ions, comprises 5 to 30 weight percent of acrylic acid and methacrylic acid; (b) an ethylene/unsaturated ester copolymer comprising ethylene vinyl acetate, ethylene acrylate, or a combination thereof; and (c) a propylene-based polymer comprising a copolymer of propylene and a comonomer comprising ethylene, butene, hexene, or octene, wherein the propylene-based polymer has a molecular weight distribution (MWD) of less than 3.0, and a viscosity ratio (viscosity at 0.1 s −1 /viscosity at 100 s −1 ) of greater than 7.0.

patents.google.com/patent/US12742066Read the full source

Extracted by Autobound

From the Signal API record
Signal
Patent grant

What this signalsA new patent often shows where a company is putting its R&D budget.

Grant date
Sep 22, 2026
Inventors
4
Patent number
US12742066
Assignee
Dow Global Technologies LLC

The full record

From the Signal API record

People

  • Jong-Young LeeInventor
  • Yushan HuInventor
  • Michelle TsuiInventor
  • Brian W. WaltherInventor
  • Alyssa J. FielitzInventor

Details

Primary CPC class
C08L 33/02
USPTO assignee
Dow Global Technologies LLC
What the invention does
A plastic blend made by partially neutralizing an acrylic-acid-based polymer with metal ions, allowing it to form strong layered films.

Topics and mentions

Tags

  • Intellectual Property
  • Research & Development
  • Chemical Engineering
  • Manufacturing Operations

Technologies named

  • ionomer polymers
  • multilayer films
  • polymer compositions

Extraction

Detected
Sep 23, 2026
signal_type
patents-company
signal_subtype
patentGrant

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The API returns more than this page shows

This page shows a preview. The full patents-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/07853f20-5640-54b1-b60c-52e069d67414 returns this record as JSON. POST /v1/companies/enrich returns every signal for dow.com.

{
  "signal_id": "07853f20-5640-54b1-b60c-52e069d67414",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-23T14:51:47+00:00",
  "company": {
    "name": "Dow",
    "domain": "dow.com"
  },
  "data": {
    "cpc": [
      {
        "code": "C08L 33/02"
      },
      {
        "code": "B32B 27/08",
        "label": "Layered products"
      },
      {
        "code": "B32B 27/18",
        "label": "Layered products"
      },
      {
        "code": "B32B 27/306",
        "label": "Layered products"
      },
      {
        "code": "B32B 27/308",
        "label": "Layered products"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Chemical Engineering",
      "Manufacturing Operations"
    ],
    "detail": "In September 2026 Dow patented ionomer-based materials for multilayer films and finished articles used in packaging and other manufactured products.",
    "summary": "Dow was granted a patent for durable multilayer film compositions",
    "event_at": "2026-09-22",
    "inventors": [
      {
        "name": "Jong-Young Lee",
        "status": "unresolved",
        "is_primary": true
      },
      {
        "name": "Yushan Hu",
        "status": "resolved",
        "is_primary": false,
        "linkedin_url": "https://www.linkedin.com/in/yushan-hu-9449204"
      },
      {
        "name": "Michelle Tsui",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Brian W. Walther",
        "status": "unresolved",
        "is_primary": false
      },
      {
        "name": "Alyssa J. Fielitz",
        "status": "resolved",
        "is_primary": false,
        "linkedin_url": "https://www.linkedin.com/in/alyssa-j-fielitz"
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-09-22",
    "source_url": "https://patents.google.com/patent/US12742066",
    "cpc_primary": {
      "code": "C08L 33/02"
    },
    "patent_title": "Compositions, multilayer films formed from such compositions, and articles",
    "patent_number": "US12742066",
    "uspto_assignee": "Dow Global Technologies LLC",
    "patent_abstract": "Embodiments of the present invention relate to compositions, multilayer films, and articles. In one aspect, a composition comprises (a) an ionomer that is an acid copolymer comprising ethylene and at least one of acrylic acid and methacrylic acid, wherein a portion of the acid groups in the acid copolymer are neutralized by metal ions and are carboxylic acid salts, and wherein the acid copolymer, prior to neutralization of acid groups by metal ions, comprises 5 to 30 weight percent of acrylic acid and methacrylic acid; (b) an ethylene/unsaturated ester copolymer comprising ethylene vinyl acetate, ethylene acrylate, or a combination thereof; and (c) a propylene-based polymer comprising a copolymer of propylene and a comonomer comprising ethylene, butene, hexene, or octene, wherein the propylene-based polymer has a molecular weight distribution (MWD) of less than 3.0, and a viscosity ratio (viscosity at 0.1 s −1 /viscosity at 100 s −1 ) of greater than 7.0.",
    "precision_class": "structural",
    "invention_explanation": "A plastic blend made by partially neutralizing an acrylic-acid-based polymer with metal ions, allowing it to form strong layered films.",
    "technologies_mentioned": [
      "ionomer polymers",
      "multilayer films",
      "polymer compositions"
    ]
  }
}

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