Appeal No. 1997-3620 Page 2
Application No. 08/386,795
BACKGROUND
The subject matter on appeal relates to a process of making a composite material by (1) combining
a material, such as a cellulose-containing and/or lignocellulose material, with a composition comprising
an aromatic polyisocyanate and a polyester having an average molecular weight of from 600 to about
5000 obtained by self-condensation of ricinoleic acid alone or by condensation of ricinoleic acid with a
C2-C20 starter polyol, and (2) molding the same at a temperature of from about 1800C to about 2500C.
Further details of this appealed subject matter are set forth in representative independent claim 10
that reads as follows:
10. A process for the production of a composite material comprising
a) combining material to be bonded with a composition comprising 1) an aromatic polyisocyanate
and 2) a polyester having an average molecular weight of from 600 to about 5000 obtained by
self-condensation of ricinoleic acid alone or by condensation of ricinoleic acid with a C2-C20
starter polyol, and optionally 3) an additive and
b) molding or compressing the product of a) at a temperature of from about 180 to about 2500C.
The prior art reference of record relied upon by the examiner in rejecting the appealed claims is:
Legue et al. (Legue) 4,340,682 July 20, 1982
Claims 10 through 17 stand rejected under 35 U.S.C. § 103 as being unpatentable over Legue
‘682.
As indicated by the examiner on page 3 of the Answer (and not contested by the appellants),
the claims on appeal stand or fall together. 37 CFR § 1.192(c)(7)(1995).
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