Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas Gottfreund0
Joachim Jung0
Date of Patent
November 2, 2010
0Patent Application Number
120926490
Date Filed
October 31, 2006
0Patent Primary Examiner
Patent abstract
The invention relates to a method for raising the surface tension of biaxially-stretched films made of thermoplastic polymers. According to the method, a film is first treated on a surface by means of an atmospheric pressure plasma before being stretched transversally or simultaneously across the width thereof, and the film is additional a subjected to a second treatment by means of a corona or flame after being stretched transversally or simultaneously, the second treatment being done on the same surface which has already been plasma-treated.
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