Appeal No. 96-2341
Application 08/389,554
finding as to what amount of water is present in Munro’s water
of crystallization.
The examiner argues that Munro’s disclosed diluted
composition concentrations of 0.15 wt% and 0.2 wt% are
exemplary for a particular end use, and that to obtain higher
coverage of the scouring composition or a less abrasive
composition, it would have been obvious to one of ordinary
skill in the art to dilute the composition to other
concentrations between that of the concentrated composition
which contains no more than about 5 wt% free water, and that
of the disclosed diluted compositions containing 99.8 wt% to
99.85 wt% water (answer, pages 10 and 12).
One of ordinary skill in the art, the examiner argues, would
be aware that as the dilution is increased, a point is reached
at which the shear thinnable characteristic of the composition
is lost (answer, page 10).
Appellants argue that Munro uses a low water content in
0.15 wt% or 0.2 wt% of the composition (col. 5, lines 1-4 and
53-56). Appellants (brief, page 7) and the examiner (answer,
page 12) agree that such a solution would not be shear
thinnable as required by appellants’ claims.
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