Appeal No. 2003-0814
Application No. 09/888,756
of Trokhan illustrates that in processes for manufacturing paper
products, papermaking belts are used. See column 1, line 55 –
column 3, line 49. An objective of Trokhan is to buy a process
for improving the belt life of papermaking belts. See column 4,
lines 36-40. Details of how resinous material is supplied is
set forth in column 27, beginning at line 35. Here, Trokhan
discloses that third set in the process is the application of a
coating of resin to the reinforcing structure. In a preferred
method, the liquid resin is applied to the reinforcing structure
at two stages. The first stage at which resin is applied is at
the place indicated by extrusion header 79 illustrated in Figure
13. At the first stage, extrusion header 79 is used to fill the
interstices in the reinforcing structure 33 from the backside.
This permits a suitable amount of photosensitive resin to adhere
to the backside of the reinforcing structure 33 so the same can
be imparted with a texture on the backside in the steps which
will be subsequently described. Trokhan states “it is necessary
that liquid photosensitive resin 70 be evenly applied across the
width of reinforcing structure 33 and that the requisite
quantity of material be worked through the interstices 39 and
into all available void volume of the reinforcing structure 33
as the design of the papermaking belt 10 requires.” A fifth
step in the process is controlling the thickness of the coating
to a per-selected value. See column 28, lines 30-32. A sixth
step in the process comprises positioning a mask 74 in
contacting relation with the liquid photosensitive 70. The
purpose of the mask 74 is to shield certain areas of liquid
photosensitive resin from exposure to light. In this way, a
per-selected pattern can be chosen. See column 28, lines
49-59.
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