Appeal No. 1997-0282
Application No. 08/423,438
have either suggested reacting prepolymers with isocyanate
compounds to solidify green bond and/or using the block
copolymer of Gergen as the block copolymer of the adhesive
composition described in Markevka for purposes of improving
its property. However, we do not find any suggestion in the
applied prior art to cap the block copolymer of Gergen with
isocyanate compounds to arrive at the claimed block copolymer.
Nor do we find any reasonable expectation of success in the
applied prior art that isocyanate compounds useful for
improving the structure of a prepolymer would also be useful
for improving the structure of the block copolymer of the type
described in Gergen. On this record, we concur with appellant
that the examiner has not established a prima facie case of
obviousness within the meaning of 35 U.S.C.
§ 103.
In view of the foregoing, the decision of the examiner is
reversed.
No time period for taking any subsequent action in
connection with this appeal may be extended under 37 CFR
§ 1.136(a).
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