Multilayer films having at least three layers and methods of producing the same

US12187016B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Justice Alaboson · Rosharon, US
• Sanjib Biswas · Midland, US
• Joshua B. Gaubert · Pearland, US
• Douglas S. Ginger · Houston, US
• Vivek Kalihari · Missouri City, US
• Mridula Kapur · Lake Jackson, US
• Lori L. Kardos · Freeport, US
• Nicolas Cardoso Mazzola · São Paulo, BR
• Francis O. Olajide, Jr. · Pearland, US
• Didem Oner-Deliormanli · Bellaire, US
• Jose Eduardo Ruiz · Saginaw, US

Key dates

• Filing date: Aug 4, 2020
• Grant date: Jan 7, 2025
• Expiry date: Jul 18, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2207/066
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Embodiments of the present disclosure are directed to multilayer films. Embodiments of the multilayer films may include a first layer comprising a polyethylene composition having a density of 0.924 g/cm3 to 0.936 g/cm3 and a melt index (I2) of 0.25 g/10 minutes to 2.0 g/10 minutes, a second layer comprising a first polyolefin, a third layer comprising a second polyolefin. The first layer may be positioned between the second layer and the third layer. The first polyolefin and the second polyolefin may be the same or different.