Appeal No. 2003-0059
Application 09/238,553
layer being removable from the label assembly after attachment to
a substrate, leaving no tacky surface and a substantially
transparent surface to enable one to read printing on the
underlying substrate” (specification, page 1, lines 10-15).
Claim 1 is illustrative:
1. A continuous roll of labels comprising:
a length of backing web;
a sheet of paper stock material reactive to a heat source
for the development of an indicia in said paper stock material,
said paper stock material having coating layers applied thereto
comprising:
a first coating layer comprising a sealant layer applied to
the underside of said paper stock material, said sealant layer
formed by drying an adhesive to said underside of said paper
stock materials;
a second coating layer overlaying said sealant layer, said
second coating layer being cured silicone;
a third coating layer overlaid said cured silicone layer,
said third layer being a cured layer of varnish;
a pressure sensitive adhesive layer overlaid said varnish
layer, said pressure sensitive adhesive layer adjacent said
backing web;
said first coating layer comprising a sealant being non-
reactive with said paper stock material and said second coating
layer so as to permit said paper stock material to develop said
indicia from said heat source, said second coating layer and said
third coating layer being substantially incompatible such that
said second and third coating layer separate from one another
when said labels, applied to a surface, are pulled therefrom but
have shear and tensile strength therebetween greater than the
tensile strength between said pressure sensitive adhesive layer
2
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Last modified: November 3, 2007