METHOD AND COMPOSITIONS THAT RENDER MATERIALS RF RESPONSIVE

摘要

The coating of an RF active material on a non-RF active substrate material of typical thick- ness for packaging purposes, can generate suffi- cient thermal energy to effect strong bonding of the substrate materials. The RF active material may be deposited on less than the entire inner sur- face area of the substrate material, preferably, at or near the portion of the substrate surface which re- presents the heat seal interface. In this manner of application, additional coating or printing of other substances on the substrate surface can be achieved without hampering the heat sealing pro- cess. Flexible medical containers capable of con- taining a product which is maintained and re- moved under sterile conditions, can be constructed on commercial production machines from these coated non-RF active substrate materials.