Process for modifying large polymeric surfaces
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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Abstract
The disclosure herein describes a process for modifying large polymeric surfaces; a thin, uniform coating is deposited at near ambient temperature on the surfaces in a large-volume plasma apparatus, the plasma state being produced by using electromagnetic energy in the microwave frequency range. The surfaces thus coated constitute a barrier against permeation by oxygen and moisture.
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Citations
22 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification