Appeal No. 1997-1748 Page 4
Application No. 08/394,935
brief in support of their respective positions, we conclude
that the examiner has not established a prima facie case of
obviousness for the claimed subject matter. Accordingly, we 2
will not sustain the examiner's § 103 rejection for reasons
set forth in appellant's brief and as further discussed below.
Calhoun (page 1) teaches that a blended polymeric
composition containing at least one acid-functional vinyl
polymer and at least one amino-functional siloxane polymer may
be used as a quasi-crosslinked coating for various substrates.
Calhoun (pages 3-5) further teaches that: (1) the amino-
functional polysiloxane employed is water-insoluble albeit the
blended polymer composition is soluble or dispersible in water
and (2) an alkali or basic ingredient such as a volatile amine
or ammonia is included in the composition to prevent reaction
of the siloxane with the acid-functional moieties of the vinyl
polymer. Morino (pages 1 and 2) discloses a silane-
modified macromolecular dispersion for use in a coating
material that is taught as advantageous for its adherence to
silicate glass. The silane is described as water-soluble
2We note that it is the examiner who bears the initial
burden of presenting a prima facie case of obviousness in
rejecting claims under 35 U.S.C. § 103. See In re Rijckaert,
9 F.3d 1531, 1532, 28 USPQ2d 1955, 1956 (Fed. Cir. 1993).
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