Oil resistant packaging

US7713561B2 · kind B2 · utility

Assignee

• Diamond Foods, Inc. · US

Inventors

• Marcia A. Popa · Edina, US
• Randal J. Monforton · Minnetrista, US
• David W. Plank · Taylors Falls, US
• Jonathan W. DeVries · Coon Rapids, US

Key dates

• Filing date: Feb 14, 2007
• Grant date: May 11, 2010
• Expiry date: Jul 20, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1307
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Oil resistant package material and packages prepared therefrom have cyclodextrin incorporated in or adjacent to a film layer of the package to reduce the permeation of oil through the package material, and particularly out of the package. The film layer comprises a polymer that coordinates or bonds with a cyclodextrin compound in an amount sufficient to reduce the permeation of oil through the film layer as compared to a like film layer that does not contain cyclodextrin.