Appeal 1997-2575
Application 08/524,661
9. With respect to the calcium carbonate filler,
Beers states (col. 5, lines 37-52):
Another important aspect of the present invention is
the use of a hydrophobic calcium carbonate filler which
imparts a desirable oil stabilizing effect as well as a
low degree of reinforcement to the polymer to allow for
the incorporation of low modulus properties. The amount
of hydrophobic filler generally ranges from about 5 to
about 60 percent [applicant claims 17 to 65%] by weight
with from about 15 to about 45 percent by weight based
upon a total composition weight being preferred. It is
important to the present invention that the water level
of the hydrophobic filler be very low. Accordingly, if
small amounts of filler are utilized, that is 15 percent
by weight or less, the water level can range up to 0.4
percent by weight based on the total weight of
hydrophobic filler. Generally, the water content is 0.2
percent by weight or less with from about 0.1 percent by
weight or less being preferred.
- 6 -
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007