Appeal No. 95-0192
Application No. 07/914,228
Answer. Specifically, Hughes states (column 4, lines 16-19)
that:
Polyurethane products are
made by reacting a polyisocyanate
with a polyol. The
urea/polyisocyanate dispersions
of the present invention may be
used in the same manner as
conventional polyisocyanates.
Hughes further discloses employing conventional ingredients,
including a solid fire retardant (flame proofing agent, such
as phosphates) during production of polyurethanes having
improved physical characteristics. See column 4, lines 24-31.
However, as recognized by the examiner, Hughes does not
mention that its solid fire retardant is dispersed in its
polyisocyanate containing polyurea particles.
To remedy this deficiency, the examiner relies on the
disclosure of Paige. As acknowledge by appellants at page 9
of the Reply Brief, Paige specifically describes dispersing a
solid butene-based flame retardant in an isocyanate prior to
mixing the resulting isocyanate with a polyol to form a
polyurethane product in example 3 at lines 37-39, column 5.
In addition, Paige states (column 4, lines 46-64) that:
5
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