Appeal No. 96-1142
Application 07/939,180
founded. Accordingly, we do not sustain these rejections.
Rejection over Chao
Chao discloses a process which “provides water-based
coatings and adhesives which exhibit excellent adhesion to a
variety of rigid and non-rigid substrates, including metal,
plastic, leather, wood, wood fiber products and non-woven
fibers” (col. 5, lines 63-67). The process is a two-step
process wherein (1) an aqueous dispersion of a latex polymer
containing active hydrogen is mixed with at least one multi-
functional isocyanate to form a polymer-isocyanate adduct, and
(2) the adduct is subsequently mixed with an aqueous
dispersion of a polyurethane polymer (col. 5, lines 40-45;
col. 6, lines 10-18). The useful levels of polyurethane
polymer and isocyanate in the composition are, respectively,
from about 0.1 wt% to about 50 wt% and from about 0.05 wt% to
about 10 wt% of the composition on a dry weight basis (col. 9,
lines 27-30; col. 10, lines 1-4).
Appellants argue (supplemental reply brief, page 2), and
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