Multilayer films comprising polyethylene and barrier layers and methods of producing the same

US12330399B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Georgia Natacha Eftalie Bitinis · Tarragona, ES
• Albert Carbonell · Tarragona, ES
• Peter Sandkuehler · Erkelenz, DE
• Sanjib Biswas · Midland, US
• Mehmet Demirors · Terneuzen, NL
• Joshua B. Gaubert · Pearland, US
• Mridula Kapur · Lake Jackson, US
• Didem Oner-Deliormanli · Bellaire, US

Key dates

• Filing date: Aug 4, 2020
• Grant date: Jun 17, 2025
• Expiry date: Aug 4, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2439/70
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Embodiments of multilayer films are disclosed comprising a first layer comprising polyethylene, a second layer comprising a first medium density polyethylene; a barrier layer; a third layer comprising a second medium density polyethylene; and a fourth layer comprising polyethylene. The second layer may be positioned between the first layer and the barrier layer. The barrier layer may be positioned between the second layer and the third layer.