Appeal No. 2002-2063
Application No. 09/635,093
(a) a phenolic resin component consisting essentially of at
least (i) one phenolic resin exhibiting free phenolic and free
alcoholic OH-groups and (ii) a solvent for the phenolic resin; and
(b) a polyisocyanate component consisting essentially of (i)
at least one polyisocyanate capable of reacting with said phenolic
resin exhibiting free phenolic and free alcoholic OH-groups to
form a resin therewith and (ii) a solvent for said polyisocyanate;
wherein said solvent (b) (ii) for said polyisocyanate is
comprised at least in part of a fatty acid methyl ester, wherein
said fatty acid methyl ester is a methyl monoester of one or more
fatty acids with a carbon chain of twelve or more carbon atoms,
and wherein said solvent (b)(ii) for said polyisocyanate contains
more fatty acid methyl ester than high-boiling aromatic
hydrocarbon.
The Reference
In rejecting the claims under 35 U.S.C. § 103(a), the
examiner relies upon the following reference:
Furness et al. (Furness) 3,904,559 Sep. 09, 1975
The Rejection
Claims 12-29 stand rejected under 35 U.S.C. § 103(a) as being
unpatentable over Furness.
The Invention
The invention relates to a two-component polyurethane-based
binder system which consists essentially of a phenolic resin and a
solvent for the phenolic resin, a polyisocyanate and a solvent for
the polyisocyanate which contains more fatty acid methyl esters
(FAME) than high-boiling aromatic hydrocarbons. (Appeal Brief,
page 1, line 13 - page 4, line 19).
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