Appeal No. 1996-1185
Application No. 08/063,985
9 stand similarly rejected under the same section of the
statute over Choy in view of Johnston.
We cannot sustain the stated rejections.
The subject matter on appeal is directed to a
process for the preparation of low-dust granules which
involves the application of either an aqueous solution or
aqueous suspension of a hydrate-forming compound at a
temperature above the “transition temperature” of the hydrate-
forming compound (the temperature at which the hydrate-forming
compound releases or takes up bound water of crystallization)3
to a particulate starting material (such as a bleach
component) at a temperature below the “transition
temperature.” Granulation of the materials into low-dust
granules is effected either simultaneously or subsequently to
the “applying” step. Appellants characterize the claimed
process as resulting in “unexpectedly superior low-dust
granulated material” which further advantageously enables the
granulation of heat-sensitive materials such as enzymes which
3For appellants’ preferred compound, sodium sulfate, the
“transition temperature” is 32.5EC. See the specification at
page 6, lines 8-21.
3
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