Appeal No. 1997-0699 Page 3
Application No. 08/217,659
potassium persulfate, ammonium persulfate,
sodium perborate, potassium perborate,
ammonium perborate, barium peroxide,
strontium peroxide and mixtures thereof,
said process comprising
preparing a moving bed of said
pulverulent material so as to
granulate said pulverulent material,
spraying on said moving bed of
said pulverulent material a binder
consisting essentially of
polypropylene glycol having a
molecular weight ranging from 200 to
10,000, said binder being in the form
of a solution in a solvent selected
from the group consisting of a C -C
1 4
alcohol, methylene chloride, ethylene
chloride and mixture thereof,
and removing said solvent so as
to produce said granules of said
granulated composition, said granules
having a size ranging from 65 Fm to
800 Fm and said binder being present
in an amount not exceeding 25 percent
by weight based on the total weight of
said composition.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Wurster 3,089,824 May 14,
1963 Clausen et al. (Clausen) 5,279,313
Jan. 18, 1994
(application filed Dec. 12,
1991)
Claims 21-38 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Clausen in view of Wurster.
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