Appeal No. 2003-0820
Application No. 09/789,989
blowing agent in which an A-side containing isocyanate is mixed
with a B-side containing polyol. Further details of this
appealed subject matter are recited in representative claim 1
reproduced below:
1. In a process for preparing water-blown
polyurethane foam using a gaseous co-blowing agent in
which an A-side containing isocyanate is mixed with a
B-side containing polyol, the improvement which
comprises conducting such mixing at a pressure of no
more than about 1,300 psig.
The examiner relies on the following prior art references
as evidence of unpatentability:
De Vos et al. 5,444,101 Aug. 22, 1995
(De Vos)
Valoppi 5,700,843 Dec. 23, 1997
Claims 1 through 4 on appeal stand rejected under 35 U.S.C.
§ 102(b) as anticipated by Valoppi or De Vos. (Examiner’s
answer mailed Jun. 5, 2002, paper 10, pages 3-4.)
We affirm. Because we are in complete agreement with the
examiner, we incorporate the examiner’s analyses as our own and
add the following comments primarily for emphasis.1
The examiner found that Valoppi and De Vos independently
describe processes for preparing water-blown polyurethane foam
1 The appellants submit: “For purposes of this appeal,
[c]laims 1-4 stand or fall together...” (Appeal brief filed
Mar. 6, 2002, paper 8, p. 5) We therefore limit our discussion
to claim 1. 37 CFR § 1.192(c)(7)(1995).
2
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