Appeal No. 2003-1906
Application No. 09/458,623
[p]rocesses for producing these laminates are well
known. If two thermoplastics are compatible, they can
be combined by coextrusion to form a composite
structure or laminated by melting the surfaces of the
layers in contact with one another and by applying
pressure. If the two thermoplastics are not compatible
they can be made into a laminate by placing an adhesive
layer between the incompatible layers. (page 2, lines
8-13).
Accordingly, we are convinced that, based upon the
collective teachings of Takanashi and Knott, as well as the state
of the prior art, it would have been obvious for one of ordinary
skill in the art to make the laminated lid of Takanashi by a
coextrusion process.
Appellants also contend that Takanashi provides no teachings
that the lid may be opaque. However, while Takanashi teaches
that the layers of the lid are transparent and allow the contents
to be readily inspected, we concur with the examiner that Schreck
evidences the obviousness of adding a pigment to at least one of
the layers of the film to protect the contents from radiation, if
so desired. We find no error in the examiner’s reasoning that
the decision for one of ordinary skill in the art to opacify the
lid is contingent upon its intended use.
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