Appeal No. 2002-2317
Application No. 09/025,607
and the basic monomer each can be used in an amount of 1 to
100 parts by weight per 100 parts of total monomeric material
(col. 4, lines 29-32; col. 5, lines 59-62). Uraneck teaches that
“[p]roperties of the compositions can be varied by varying the
blending ratio as well as the types of polymers employed”
(col. 2, lines 13-15) and that “[t]he polymers can range from
liquids to elastomers to resinous materials depending upon the
monomers chosen, ratio of monomers, amount and type of modifying
agent, and polymerization conditions” (col. 4, lines 32-35).
The examiner argues that “[s]ince the intended uses include
adhesives (column 2, line 56), this makes any ratio of the two
copolymers obvious” (answer, page 4). As discussed above,
however, Uraneck teaches that the properties of the product
depend upon a number of factors other than the ratio of
copolymers. The examiner has pointed to Uraneck’s disclosure
that the products of the invention can be used in adhesives, but
has not explained how the reference would have led one of
ordinary skill in the art to select a combination of variables
needed to make a hot-melt pressure-sensitive adhesive. As
discussed above regarding the rejections over Murdock, “hot-melt
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