Appeal No. 95-0999
Application 07/925,347
as an adhesive/sealant. Specifically, the specification
states (page 8):
“Reaction system” as used herein means a system
or assemblage of reaction components which, in the
system, are unreacted or not fully reacted but which
in use, are reacted with each other. (Emphasis
added).
Thus, we construe the claimed liquid adhesive/sealant
“reaction system” as including or covering a combination of at
least two containers, with each container having only one of
at least one particular polyisocyanate and at least one
broadly recited component having at least one imino- or
enamino-functional linkage. The amounts of the components
releasable from the containers are such that they, upon
combining, form solid polymer, e.g., dry sealant, at room
temperature within a short time period. See specification,
page 3. According to appellants, the molecular number ratio
of the total number of isocyanate groups in the polyisocyanate
to the total number of the imino-or enamino-functional linkage
is at least 2:1.
Appellants do not dispute that Gillis and Cassidy
individually describe the claimed polyisocyanate and the
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