Heat shrinkable barrier bags

US6544660B1 · kind B1 · utility

Assignee

• Pechiney Emballage Flexible Europe · FR

Inventors

• Keith D. Lind · Appleton, US
• John P. Eckstein · Neenah, US
• Robert J. Blemberg · Appleton, US
• Roger Kaas · Harrison, US
• George H. Walbrun · Menasha, US

Key dates

• Filing date: May 18, 2000
• Grant date: Apr 8, 2003
• Expiry date: May 18, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31928
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Films comprising a first layer, composition of said first layer comprising a blend of an ethylene vinyl acetate copolymer; linear low density polyethylene; a second ethylene vinyl acetate copolymer; and slip; a second layer, composition of said second layer comprising ethylene vinyl acetate copolymer and wherein each first and second layer having two surfaces; a third layer, composition of said third layer comprising vinylidene chloride methyl acrylate and wherein said third layer is disposed between said first and second layer; a fourth layer, composition of said fourth layer being the same as said first layer wherein said fourth layer is adhered to said first layer on the surface opposite said third layer; and a fifth layer, composition of said fifth layer comprising a blend of linear low density polyethylene and low density polyethylene wherein said fifth layer is adhered to said second layer on the surface opposite said third layer are provided for.