Food storage containers formed at least partially from post-consumer recycled polymeric material

US11649098B1 · kind B1 · utility

Assignee

• Printpack Illinois, Inc. · US

Inventors

• Ilias Ali · Bengaluru, IN
• Daniel C. Sanders · Richmond, US
• Hoo In Won · Richmond, US
• Harold Stephen Bowen · Hayes, US
• Matthew Shaun Liwanag · Williamsburg, US
• John Craig Small · Bethlehem, US
• Siyi Wang · Hillsboro, US
• David T. Foster · Williamsburg, US

Key dates

• Filing date: Oct 1, 2020
• Grant date: May 16, 2023
• Expiry date: Oct 1, 2040

Classification

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

Abstract

A container thermoformed from a polymeric multilayer sheet includes a cavity for containing food. The sheet includes a polymeric interior layer positioned between (i) a polymeric outer layer of the sheet and (ii) a polymeric inner layer of the sheet that is in opposing face-to-face relation with, and at least partially defines, the cavity of the container. The interior layer includes post-consumer recycled polymeric material. The sheet includes a polymeric barrier layer positioned between the interior layer and inner layer. The barrier layer restricts inward passage of at least some of any gasses originating from the post-consumer recycled polymeric material.