Appeal 2007-4259
Application 10/417,752
Claim 1 is illustrative:
1. A fibrous nonwoven material comprising chemically bonded fibers
wherein said fibers are bonded by a polymeric binder composition,
wherein said binder is present in an amount which is sufficient to bind
the fibers together to form a self-sustaining web in the presence of
liquid, and wherein said binder composition comprises:
a) from 55 to 96 percent by weight of a film-forming polymer, based
on the binder composition solids, comprising N-methylol acrylamide
or a mixture of N-methylol acrylamide and acrylamide;
b) from 4 to 45 percent by weight of one or more opacifying agents,
based on the weight of the binder composition solids; and
c) 0 to 2 percent by weight of one or more adjuvants, based on the
binder composition solids.
The Examiner relies upon the following references:
Gorley GB 2,328,451 A Feb. 24, 1999
Iacoviello US 4,449,978 May 22, 1984
DeWitt US 4,529,465 Jul. 16, 1985
Appealed claims 1-5 and 8-16 stand rejected as unpatentable as under
35 U.S.C. § 103(a) over Iacoviello in view of DeWitt further in view of
Gorley.
Based on the contentions of the Examiner and the Appellants, the
issues before us are:
(1) Has the Examiner made accurate and sufficient factual findings such that
it is reasonable to conclude that one of ordinary skill in the art would have
been motivated to utilize opacifying agents in a binder composition
2
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