Appeal No. 2002-0229 5
Application No. 08/619,976
the claimed subject matter is exemplified in Example 7. We further find that light
absorbing material including titanium dioxide in an amount of at least about 1% by weight
and more preferably from about 5 to 33% by weight and most preferably from about 5 to
30% by weight based upon the total weight of the fluorine resin and the light absorbing
material is disclosed by Nishii at column 3, lines 18-50. Example 28 is directed to a
composition containing 95 wt. % PTFE and 5 wt. % TiO2. Indeed, the examples disclose
treatment with a laser of 10% of the surface area of samples which constitute less than the
entire surface of said composition.
Notwithstanding our above findings, the laser treatment disclosed in Nishii performs
an entirely different and distinct function from that required by the claimed subject matter.
A careful reading of Example 1 indicates preparation of a 300 micron thick, 30 mm wide
and 150 mm long sample. See column 5, lines 31-33. The sample was thereafter
irradiated through a mask so that an area of 30 mm in width and 15 mm in length was
irradiated with a laser. See column 5, lines 39-43. Thereafter an epoxy resin was applied
to a stainless steel plate and the sample, and the adhesive applied surfaces were bonded
together. See column 5, lines 53-58. The Peel strength was thereafter measured for both
the laser treated surface and for an untreated surface. See column 5, line 53 to column 6,
line 4. Significantly, the portion of the surface treated by the laser is utilized for bonding
to another surface. There is no disclosure or teaching that any marking or other alteration
appears on the remaining surfaces of the article. Accordingly, Nishii in and of itself is
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