Film for packaging

US11084258B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Juan C. Tuberquia · Manvel, US
• Kumar N. Sanketh · Freeport, US
• Lori L. Kardos · Freeport, US
• Cody W. Lawrence · Freeport, US
• Lamy J. Chopin, III · Freeport, US
• William B. Bellefontaine · Baton Rouge, US
• Joshua M. Jones · Midland, US
• Micah S. Vardeman · Midland, US
• Timothy E. Clayfield · Wetzikon, CH

Key dates

• Filing date: Dec 19, 2016
• Grant date: Aug 10, 2021
• Expiry date: Aug 3, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2439/46
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present disclosure provides a film. In an embodiment, a multilayer film having at least three layers is provided. The multilayer film includes two skin layers, each skin layer composed of a blend of a low density polyethylene and an ethylene-based elastomer having a density less than 0.90 g/cc. The multilayer film also includes a core layer located between the skin layers. The core layer includes a propylene-based plastomer having a density less than 0.90 g/cc. The multilayer film has an onset end temperature from 90° C. to 110° C. and a heat seal strength at 120° C. from 1.5 N/cm to 2.5 N/cm.