Appeal No. 1996-0438
Application No. 08/090,343
epoxide reaction, especially so in the presence of the
anhydride accelerators (column 7, lines 58 et seq.)
Accordingly, it would have been obvious for one of ordinary
skill in the art to exclude hydroxyl groups in forming the
intermediate composition, but to include hydroxyl-containing
compounds in the composition when curing is desired. The
composition of the appealed claims and that disclosed by
Horley are not intermediate compositions, but those which cure
at ambient conditions.
Secondly, the issue is not whether it would have been
obvious to one of ordinary skill in the art to include a
hydroxy-
containing compound in the composition of Heilman, but,
rather, whether it would have been obvious to substitute a
monoepoxide, including in minor amounts, for the polyepoxide
of Horley. Appellants have presented no reason why the
substitution of a minor amount of monoepoxide for the
polyepoxide of Horley would have been unobvious to one of
ordinary skill in the art, particularly for the purpose of
6
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007