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Process for modifying large polymeric surfaces

  • US 5,041,303 A
  • Filed: 03/07/1988
  • Issued: 08/20/1991
  • Est. Priority Date: 03/07/1988
  • Status: Expired due to Fees
First Claim
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1. A method of providing a plasma generated thin permeation barrier, against transmission of a gas or vapor, on a large polymeric surface, said method comprising:

  • depositing a film by plasma at substantially ambient temperature on said surface, said plasma being produced by electromagnetic energy in the microwave frequency range using slow wave structure applicator means;

    whereby to form on said surface said plasma generated thin permeation barrier.

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