Multi-layer film packaging of hot melt adhesive
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsMichael G. Harwell, Dale L. Haner, Leisa A. Ryan
Life of this patent
Estimating the term…
Abstract
Multi-layer films are used to package hot melt adhesives. The packaging film does not require removal prior to use of the adhesive. Multi-layer films wherein at least one layer has a melting point below about 100° C. is used to package low application temperature hot melt adhesives.
Claims20
A packaged hot melt adhesive comprising a hot melt adhesive encased in a thermoplastic film, said film being a multi-layer film comprising at least two thermoplastic layers which have different melting points, wherein one layer of said at least two layers comprises more than 50% of the film.
A method of packaging a low temperature hot melt adhesive comprising wrapping a low temperature hot melt adhesive in a thermoplastic film, said film being a multi-layer thermoplastic film comprising at least two thermoplastic layers which have different melting points, wherein one layer of said at least two layers comprises more than 50% of the film.
Dependencies are inferred from the claim text.