Appeal No. 2005-0359
Application No. 09/333,917
disclosed in the prior art, it is not inventive to discover the
optimum or workable ranges by routine experimentation.”).
Moreover, the proffered showing is insufficient to
establish that the alleged criticality for the amounts of
paraffin and crosslinking monomer exists for all compositions
within the scope of the appealed claims. While the relied upon
working examples are limited to a composition obtained by
reacting 65.8 parts by weight of n-butyl methacrylate, 25 parts
by weight of PLEXIGUM® PM 381 (ground bulk polymer based on butyl
methacrylate and methyl methacrylate), 0.2 part by weight of 2-
(2-hydroxy-5-methylphenyl)benzotriazol, 0.02 part by weight of
4-methyl-2,6-tert-butylphenol, 1.0 part by weight of N,N-bis-(2-
hydroxyethyl)-p-toluidine, 0.2 part by weight of benzyl
methacrylate, 1,4-butanediol methacrylate, paraffin, and BP-50-
FT (50 wt.% dibenzoyl peroxide inhibited with dicyclohexyl
phthalate), the appealed claims are not reasonably limited.
There is no evidence to suggest that a monomeric composition
based on, e.g., 5% by weight of methyl methacrylate, 5% of ethyl
methacrylate, 80% by weight of hexyl acrylate, 3% by weight of
triethylene glycol dimethacrylate, and 7% divinylbenzene would
provide a tacky surface unless certain minimum amounts of the
paraffin and multifunctional (meth)acrylate are selected.
12
Page: Previous 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Next
Last modified: November 3, 2007