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Acrylate composite barrier coating process

  • US 5,725,909 A
  • Filed: 02/09/1996
  • Issued: 03/10/1998
  • Est. Priority Date: 10/04/1993
  • Status: Expired due to Term
First Claim
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1. A method for forming an adherent barrier layer on a thermoplastic substrate comprising the steps of:

  • heating the surface of the substrate above its melting point and cooling the surface of the substrate below its melting point;

    evaporating acrylate monomer having a molecular weight in the range of from 150 to 600;

    depositing the evaporated acrylate on the cooled surface of the substrate;

    polymerizing the acrylate for forming a cross-linked acrylate layer; and

    depositing a layer of oxygen barrier material over the cross-linked acrylate layer.

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