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Metalized film laminates with anticorrosion agents

  • US 7,361,391 B2
  • Filed: 10/02/2002
  • Issued: 04/22/2008
  • Est. Priority Date: 10/02/2002
  • Status: Expired due to Fees
First Claim
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1. A film laminate comprising:

  • (a) a first layer comprising a polymer adhesive resin and an anticorrosion additive comprising an alkali metal salt selected from the group consisting of benzoates, sebacates and blends thereof, wherein said first layer is free of polyvinyl alcohol and polyamide;

    (b) a second layer formed as a coating comprising a metal or metal oxide comprising aluminum, zinc, nickel, copper, bronze, gold, silver or alloys thereof;

    wherein said second layer is in direct contact with said first layer(c) a third layer comprising a polymer resin;

    wherein said third layer is essentially free of low-molecular weight hydrocarbon resin;

    wherein said first layer prevents the loss of the barrier properties of said second layer such that said laminate has a water vapor transmission rate of less than 22 gm./100 in.2/24 hours as measured in accordance with ASTM 1249 test method; and

    wherein said laminate is suitable for incidental food contact.

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