Appeal No. 1999-1390
Application No. 08/655,783
polyisocyanates, and where (B) denotes a mixture of
(B1) and (B2) and (B3) where
(B1) is 40 to 85 equivalent-% (relative to the
isocyanate groups in (A)) of one or more compounds
having an average of 1.8 to 3.0 Zerewitinoff active
hydrogen atoms and a number average molecular weight
of 400 to 10000, and where
(B2) is 10 to 60 equivalent-% (relative to the
isocyanate groups in (A)) of water, and where
(B3) is 0 to 45 equivalent-% (relative to the
isocyanate groups in (A)) of one or more chain
extenders having an average of 1.8 to 3.0 Zerewitinoff
active hydrogen atoms and a molecular weight of 62 to
400, and where
(C) is 0 to 20% (relative to the weight of said
thermoplastic polyurethaneurea elastomer) of
conventional auxiliary additives.
Regarding the term "polyurethaneurea," the patentees define
this term as a "polyurethane[s] with additional urea groups."
(Column 1, lines 31-32.) With respect to the recitation "a
substantially unreacted mixture," the patentees enlighten one
skilled in the relevant art that this would include "up to 10
wt.%" of reacted isocyanate groups. (Column 6, lines 33-35.)
Thus, it would appear to us that the subject matter of the
patented claims would have fairly suggested to one of ordinary
skill in the art a process encompassed by the claims on appeal.
The examiner should consider whether a new rejection should be
entered.
The decision of the examiner is reversed.
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