Appeal No. 1996-2703
Application 08/339,637
the application.
THE INVENTION
Appellants’ claimed invention is directed toward a
process for producing a composite sheet by adhering a layer to
a cellular core by use of thermoplastic adhesive applied to
both the layer and the cell faces. Claim 11 is illustrative
and reads as follows:
11. Process for the production of a composite sheet,
which comprises:
applying a thermoplastic adhesive to a cellular core
having a plurality of cell faces;
locating the thermoplastic adhesive on the cellular core
in the form of drops only on the cell faces;
providing an outer layer;
providing thermoplastic adhesive on the outer layer on
the side thereof facing the cell faces of the cellular cores;
feeding the outer layer with said thermoplastic adhesive
thereon onto the cell faces of the cellular core; and
bonding said outer layer with said thermoplastic adhesive
layer thereon to the cell faces of the cellular core under
pressure and at elevated temperature, said bonding step
comprising mating said outer layer to said cell faces of said
cellular core so that the cellular core thermoplastic adhesive
2
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