Appeal No 2007-0310
Application No 10/260,498
is combined with a polyol prepared in the presence of a basic catalyst, rather
than a basic catalyst itself; it also includes “the proviso that no precipitate is
formed by the reaction of the acid with the basic catalyst.” (Id. at 6.)
DISCUSSION
1. CLAIMS
Claims 10-13, 25-28, and 67-78 are pending and on appeal. The
claims subject to each rejection have not been argued separately and
therefore stand or fall together. 37 C.F.R. § 41.37(c)(1)(vii). We will focus
on claims 10 and 25, which are representative and read as follows:
10. A process for preparing an ethylene oxide-capped polyol
comprising:
a) providing a polyol which has been produced in the presence of a
double metal cyanide (DMC) catalyst;
b) adding a basic catalyst to the DMC-catalyzed polyol to produce a
mixture comprising less than about 0.0375 wt.%, based on the total weight
of the mixture, of the basic catalyst;
c) ethoxylating the mixture at a temperature of from about 130°C to
about 220°C to produce an ethylene oxide-capped polyol; and
d) adding acid to the ethylene oxide-capped polyol;
with the proviso that no precipitate is formed by reaction of the acid
with the basic catalyst.
25. A process for preparing an ethylene oxide-capped polyol
comprising:
a) providing a polyol which was produced in the presence of a double
metal cyanide (DMC) catalyst;
b) adding to the DMC-catalyzed polyol a polyol which has been
produced in the presence of a basic catalyst to form a mixture comprising
from about 0.1 to about 10 wt.%, based on the total weight of the mixture, of
3
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