Appeal No. 2006/0764
Application No. 10/281,733
c) a blowing agent mixture comprising
(1) 1 to 70% by weight of a hydrogen containing
chlorofluorocarbon (HCFC) having a boiling point below
0°C., and
(2) from 30 to 99% by weight of a C2-C5
polyfluoroalkane, in which the total of (c1) and (c2)
is 100% by weight.
13. A blowing agent comprising a mixture of
(1) 1 to 70% by weight of a low boiling hydrogen
containing chlorofluorocarbon, and
(2) from 30 to 99% by weight of a C2-C5
polyfluoroalkane, in which the total of (1) plus (2) is
100% by weight.
18. A rigid foam prepared by reacting
a) an organic isocyanate with
b) an isocyanate reactive compound in the presence of
c) a blowing agent mixture comprising
(1) 1 to 70% by weight of a hydrogen containing
chlorofluorocarbon (HCFC) having a boiling point below
0°C., and
(2) from 30 to 99% by weight of a C2-C5
polyfluoroalkane, in which the total of (1) and (2) is 100%
by weight.
The examiner relies upon the following reference as
evidence of unpatentability:
Doerge 5,889,066 Mar. 30, 1999
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