Appeal No. 2006-1676
Application No. 10/384,882
Further details regarding this subject matter are set forth
in representative independent claims 1 and 2 which read as
follows:
1. A rigid polyurethane foam obtained by reacting
a)an isocyanate group-containing component, with
b) a component having a flashpoint according to DIN EN 22719
below 55°C, comprising
b1) at least one substance which is inert toward an
isocyanate, does not have an ozone-destroying effect, and
has a boiling point below 100°C,
b2) a reaction product of at least one compound having an
aromatic ring, at least one aldehyde or ketone and at least
one primary or secondary amine,
b3) optionally, at least one isocyanate-reactive component
which contains polyester groups,
b4) optionally, at least one compound which is capable of
reacting with the isocyanate and does not correspond to
component b2 or b3, and
b5) optionally, at least one additive required for the
production of a foam.
2. A polyol formulation having a flash point to [sic, according
to] DIN EN 22719 below 55°C, comprising
b1) at least one substance which is inert toward an
isocyanate, does not have an ozone-destroying effect, and
has a boiling point below 100°C,
b2) a reaction product of at least one compound having an
aromatic ring, at least one aldehyde or ketone and at least
one primary or secondary amine,
b3) optionally, at least one isocyanate-reactive component
which contains polyester groups,
b4) optionally, at least one compound which is capable of
reacting with the isocyanate and does not correspond to
component b2 or b3, and
b5) optionally, one or more additives required for the
production of foams.
2
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