Treating cavitated polymeric films with plasma at atmospheric pressure
OwnerJeffrey J. O'Brieninventor
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Abstract
A method is provided for surface treating a polymeric film. The film may be biaxially oriented and includes void spaces or cavities in a thermoplastic polymer matrix. The surface treatment involves contacting at least one surface of the film with plasma at atmospheric pressure and at a temperature below the melting point of the thermoplastic polymer of the matrix material. This method makes the treated surfaces more hydrophilic.
Claims10
A method for surface treating a polymeric film structure comprising a thermoplastic polymer matrix material having void spaces therein, said method comprising contacting at least one surface of said film with plasma at atmospheric pressure and at a temperature below the melting point of said thermoplastic polymer matrix material.
Dependencies are inferred from the claim text.