Appeal 2007-2234
Application 09/950,477
U.S.C. § 6(b). We affirm. However, since our reasons for concluding that
the claims are unpatentable differ substantially from those advanced by the
Examiner, we denominate our affirmance as a NEW GROUND OF
REJECTION. 37 CFR § 41.50(b).
A. The invention
Appellants' invention is directed to methods for enhancing the anti-
skid properties of cellulosic materials, e.g., paper boxes, bags and liners, by
coating the material with an aqueous, substantially latex-free composition
comprising an aluminate modified silica sol, as well as the resulting product
and the coating composition. Claim 11 is illustrative of the subject matter
on appeal.
11. Cellulosic material at least partially coated
with an aqueous substantially latex-free antiskid
composition comprising at least an aluminate
modified silica sol.
Claim 1 recites a method comprising coating a cellulosic material with
the composition, and claim 21 recites the aqueous composition.
B. The rejections
The Examiner rejected claims 1-30 under 35 U.S.C. § 103(a).
The following prior art2 was relied upon by the Examiner:
Wilkinson US 4,057,201 Nov. 8, 1977
Miranda (Miranda '438) US 5,716,438 Feb. 10, 1998
Miranda WO 99/39838 Aug. 12, 1999
R. Iler, THE CHEMISTRY OF SILICA, John Wiley & Sons, Inc. (1979),
pp. 406-409.
2 The reader should know that the coinventors and coauthors are not
indicated in this opinion.
2
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