Appeal No. 1998-1804
Application 08/668,291
conformed to the cavity (col. 6, lines 20-26). Natarajan
teaches that the membrane should be made of a non-sticky
material so that the membrane does not stick either to the
ceramic substrate or to any other fixture or item with which
it comes into contact (col. 8, lines 11-15). The non-sticky
membrane materials which are exemplified for use in cases
where high elongation is desired include polyethylene (col. 8,
lines 26-33), which is one of the membrane materials recited
in the appellants’ claims 1 and 14. Natarajan does not
disclose a silicone-coated membrane.
Johnstone discloses a method for applying metallic foil
to toner which has been printed on a substrate, wherein either
the backing of the metallic foil is inherently of release
material or there is a release layer of a material such as a
silicone or polytetrafluoroethylene between the metallic foil
and the backing (col. 4, lines 14-19). The side of the
metallic foil opposite the backing has thereon a transfer
adhesive (col. 4, lines 22-23). Because the foil has a much
higher affinity to the adhesive than to the release material,
when the adhesive engages the toner and heat and pressure are
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