Appeal 2007-2154
Application 10/374,773
this appeal as to the Examiner’s obviousness rejection of claims 1-10 over
Betso.
There is no dispute that Betso discloses or suggests a material
comprising a blend of a random interpolymer and another polymer.
However, Appellants contend that Betso discloses that their interpolymer-
containing material composition is useful for surrounding an electrically
conductive substrate as an insulating or semi-conductive shield layer and
does not teach or suggest the material is usable for making a fugitive pattern
of an article to be cast of a metal or alloy (Br. 10). Moreover, Appellants
contend that Betso does not suggest a pattern material including the
interpolymer and other polymer component in a proportion such that the
material of Betso is injection moldable with properties suitable for forming a
casting mold (Br. 10-12).
Thus, the principal issues before us with respect to the Examiner’s
obviousness rejection, particularly the rejection of representative claim 1, is:
Have Appellants identified reversible error in the Examiner’s rejection by
asserting that Betso does not suggest that their material can be used for
making a fugitive pattern of an article to be cast, and/or by asserting that
Betso does not suggest a material that is injection moldable for forming a
molded pattern having properties useful for making a casting mold for a
metal or alloy? We answer these questions in the negative and affirm the
Examiner’s rejection of claim 1 and claims 2-10 that stand or fall together
therewith.
Representative claim 1 is drawn to a pattern material that comprises
two constituents: (A) a substantially random interpolymer and (B) a
polymer other than said interpolymer, with the further proviso that
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