Multi-layer hermetically sealable film and method of making same

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer

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Details

428347, 428515, 428516, 428483, B32B 712

Patent

active

058886486

ABSTRACT:
The present invention is a multi-layer film which has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film of the present invention includes a main substrate and a sealant layer. The sealant layer, in turn, includes two components, an intermediate layer which has the primary function of compliance during sealing, and a sealing layer which has the primary function of providing adhesivity to the completed seal. As a result of this invention, high strength hermetic seals can be provided to multi-layer films effectively and efficiently, and hermetic seals are provided with the ability to be peeled open without destruction of several layers of the film.

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