Appeal No. 1998-1306
Application 08/429,326
This is a decision on an appeal from the final rejection
of claims 1-20, which are all of the claims in the application.
The subject matter on appeal relates to a composition
suitable for purification of an edible oil comprising a mixture of
particulate clay and a particulate polycarboxylic organic acid
wherein the clay has a free moisture content of no more than about 8
percent by weight. The appealed subject matter also relates to an
article of manufacture comprising a composition of the type previ-
ously described in a package provided with a vapor barrier. Finally,
this subject matter additionally relates to a method of sorptive
purification of edible oils prior to bleaching which comprises
contacting the oil with a composition of the type described earlier.
This subject matter is adequately represented by independent claim 1,
which reads as follows:
1. A composition suitable for purification of an edible
oil and comprising a mixture of particulate clay and a particulate,
polycarboxylic organic acid having a pKa value in the range of about
1 to about 7 and being substantially free from organic acid salts;
said clay having a free moisture content of no more than about 8
percent by weight, based on the weight of the clay, and said
polycarboxylic organic acid being present in an amount in the range
of about 1 to about 8 percent by weight, based on the weight of the
composition.
2
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