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EP1728731: Peelable vacuum skin packages

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Filing Information

Inventor(s) BERBERT OTACILIO T ·
Assignee(s) CURWOOD INC ·
Application Number EP06114576
Filing date --
Publication date 12/06/2006
U.S. Classifications --
International Classifications B65D 75/28  · B65D 75/30  · B65D 75/52  · B65D 75/58  · B65D 77/10  · B65D 77/20  ·
Kind CodeA1
No Claims, No Drawings


Abstract

The present invention describes vacuum skin packages comprising a thermoplastic film and a polyester substrate wherein the thermoplastic film includes at least a first polymer layer having a first surface and an opposing second surface and comprises an ethylene/unsaturated ester copolymer, wherein the first surface has been surface treated in a manner to exhibit a surface tension of between 36-60 dynes/cm. The thermoplastic film is adapted to form a peelable seal between the first surface of the first polymer layer of the thermoplastic film and the polyester substrate by a pressure of less than 1 × 10 5 Pa applied therebetween, wherein the peelable seal has a seal strength of between 0.5-6 1b./in. (0.09-1.08 kg/cm).

Independent Claims

The current document has no claims.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2002172834
US4756421 JEFFERSON SMURFIT CORP
US2004197442
US2003152669
USRE30009 W. R. Grace & Co.
US4055672 Standard Packaging Corporation
US4375851 Bemis Company, Inc.
US5033253 W. R. Grace & Co.-Conn.
US5460269 Schonbek Worldwide Lighting Inc.
USRE37171 Curwood, Inc.
US2005042468
US6630237 Cryovac, Inc.
US5346735 W. R. Grace & Co.-Conn
US4859514 W. R. Grace & Co.
US3355319 DU PONT

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
EP0503786OSCAR MAYER FOODS CORPORATION

Referenced By

The current document is not referenced by other documents.