Appeal 1995-2560
Application 07/833,973
We see no error in the examiner’s determination that
Zaffaroni generically describes a process comprising
combining, in an aqueous mixture, one or more polyanionic
polysaccharides, a modifying compound, a nucleophile, and an
activating agent under conditions sufficient to form a
composition wherein said modifying compound causes the
formation of a new active carbonyl group on said polyanionic
polysaccharide. However, appellants argue that “[w]ater
solubility is an essential characteristic of the Zaffaroni
compounds since this characteristic permits their use as food
additives” (Br., p. 18, first para.). As support for the
argument, appellants cite Zaffaroni’s disclosure at column 1,
lines 59-64, and column 2, lines 19-24.
The examiner responds that, because Zaffaroni
contemplates
a method comprising combining, in an aqueous mixture, one of
appellants’ representative polyanionic polysaccharides, a
modifying compound, at least one of appellants’ representative
nucleophile components, and at least one of appellants’
representative activating agents, under conditions sufficient
to form a composition wherein said modifying compound causes
the formation of a new active carbonyl group on said
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