Appeal No. 2001-1249
Application 08/658,341
27. A grease formulation comprising a mixture of (1) an
environmentally friendly inorganic thickener or a gelling agent
additive thickener, and (2) a base stock, said base stock
consisting essentially of a neopentyl polyol ester consisting
essentially of the reaction product of a neopentyl polyol and a
C12-C20 monocarboxylic acid, said base stock having the following
characteristics:
(i) flash point of 175°C;
(ii) kinematic viscosity of less than 15 cSt at 100°C;
and a biodegradability of $ 70%, as determined by
CEC-L-33-T-82.
THE REFERENCES
Mores et al. (Mores) 4,066,789 Jan. 3, 1978
Tubbs et al. (Tubbs) 4,557,839 Dec. 10, 1985
Zehler et al. (Zehler ‘990) 4,589,990 May 20, 1986
Zehler et al. (Zehler ‘840) 4,601,840 Jul. 22, 1986
Mullin 4,780,229 Oct. 25, 1988
King 4,965,001 Oct. 23, 1990
Schmid et al. (Schmid) 5,057,247 Oct. 15, 1991
THE REJECTION
Claims 8, 16, 24-29, 31-34 and 40-44 stand rejected under
35 U.S.C. § 103 as being unpatentable over the combined teachings
of Schmid, Mullin, Zehler ‘990, King, Tubbs, Zehler ‘840 and
Mores.
OPINION
We affirm the aforementioned rejection.
The appellant states (brief, page 4): “Claims 27, 8, 16, 28,
29 and 31 may be considered to stand or fall together, but not
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