Appeal No. 96-2710
Application No. 08/164,598
properly combinable with the secondary references.” See
Brief, page 7. We disagree.
An analysis of the primary reference to Kawakami requires
us to conclude that the patent contemplates the presence of
multiple slip agents provided only that they are not
detrimental to the objects of the invention. Both the
crosslinked silicone resin and the hydroxy-fatty acid
glyceride are present in Kawakami in part to provide
slipperiness. See column 2, line 64 through column 3, line
15. As stated therein, if the amount of either compound falls
below a requisite minimum the slipperiness is not
satisfactory. Nor does Kawakami contemplate that these be the
only slipperiness agents present in the invention. In column
4, lines 22-40, Kawakami suggests that additional “slip
agents” may be added to the olefin polymer film of his
invention. Moreover, patentee specifically provides that,
“known ....slip agents.... can be incorporated in the
composition constituting the propylene polymer film of the
present invention in amounts not hindering the attainment of
the objects of the present invention.” We conclude that
Kawakami would have suggested the addition of any number of
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