Appeal No. 1998-1075
Application No. 08/701,600
coating the thus treated substrate, and drying the coated
substrate (Answer, page 3, citing Holker, page 1, ll. 50-115).
The examiner reasons that the partially impregnated substrate
of the reference would have provided voids between the
surfaces of the substrate and would have coated at least some
of the fibers of the substrate (id.).
The examiner’s findings are a combination of the general
disclosure of Holker at page 1, ll. 50-59, with a specific
example of Holker at page 1, ll. 95-116. Holker, at page 1,
ll. 50-59, discloses his invention as follows:
According to the invention there is provided a
method of substantially non-penetratively coating a
porous substrate by filling the pores with a fluid
impervious layer comprising, at least partially
impregnating the substrate with a thixotropic gel or
a suitably thickened or viscous polymer solution,
coating the impregnated substrate with a substance
adapted to form an outer layer and, after the said
outer layer has formed, removing the thixotropic gel
or polymer solution from the substrate. [Emphasis
added].
It is clear from this disclosure that Holker does not
teach removal of the gel (i.e., the second material) until
after the outer layer (i.e., the curable liquid resin) has
formed, contrary to the steps recited in claim 1 on appeal.
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