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US 5,672,383 AGranted
Barrier films having carbon-coated high energy surfaces
AssigneeMobil Oil Corporation
InventorsJohn R. Wagner, Jr., Eldridge M. Mount, III
Life of this patent
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Abstract
A carbon coated polymeric film is produced by Plasma Enhanced Chemical Vapor Deposition. An amorphous nylon layer having at least one exposed high energy surface is adhered to a polymeric substrate. Carbon is thereafter deposited on the exposed high energy surface by vapor deposition of a decomposable precursor in the presence of plasma.
Claims11
A method for producing a polymeric film having barrier characteristics, comprising:
- depositing a carbon coating on an exposed surface of an amorphous nylon layer by vapor deposition of a hydrocarbon gas in the presence of plasma, wherein said amorphous nylon layer is in adhered to a polymeric substrate.
A method for increasing the production rate of a barrier film, comprising:
- adhering an amorphous nylon layer having at least one exposed surface to a polymeric substrate;
- and thereafter
- depositing a carbon coating on said exposed surface of said amorphous nylon layer by vapor deposition of a hydrocarbon gas in the presence of plasma.
Dependencies are inferred from the claim text.