Appeal No. 1997-1907 Page 2
Application No. 08/265,369
part of the present application and U.S. application No.
08/430,083 was filed on April 27, 1995 as a divisional of the
present application . Both related and copending applications1
are also before us on appeal (Appeals No. 1997-1991 and 1997-
2384, respectively).
Appellants' invention relates to a composition comprising
a dispersion of a polyurethane in water and a method of
preparing the composition. An understanding of the invention
can be derived from a reading of exemplary claims 1 and 8,
which are reproduced below.
1. A composition being an aqueous dispersion of a
polyurethane in water, said composition comprising water and
the reaction product of:
(a) a water-dispersible isocyanate-terminated
polyurethane prepolymer having an NCO content of between 2.1
and 10% by weight,
(b) an organic polyisocyanate adduct mixture comprising a
polyisocyanate uretdione and a polyisocyanate isocyanurate and
having an average isocyanate functionality of between 2.1 and
4.0, and
1In stark contrast, appellants inexplicably state that
“no related applications have yet been filed off of this
original application.” See page 2 of the brief filed on March
01, 1996 (certificate of mailing dated February 21, 1996) and
37 C.F.R.
§ 1.192(c)(2) (1995).
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