Appeal No. 2001-1249
Application 08/658,341
and clay are “environmentally friendly” as that term is used by
the appellant.1
King discloses a wide range of exemplified synthetic
lubricants (col. 3, lines 48-56), one of which
(trimethylolpropane tripelargonate) is among the second neopentyl
polyol esters encompassed by the appellant’s claim 40. King does
not disclose that the synthetic lubricant can be the reaction
product of a neopentyl polyol and a C12-C20 monocarboxylic acid as
recited in both of the appellant’s independent claims 27 and 40.
However, King indicates that any synthetic fluid having
lubricating viscosity is suitable as the lubricating base
(col. 3, lines 48-49). Two such synthetic fluids which are among
the neopentyl polyol esters encompassed by the appellant’s
claim 27 and the first neopentyl polyol esters encompassed by the
appellant’s claim 40 are, as indicated by Zehler ‘990 (col. 14,
lines 22-23 and 52) and Zehler ‘840 (col. 14, lines 48-49;
col. 15, lines 9-10), trimethylolpropane triisostearate and
trimethylolpropane trioleate. Mullin also indicates that
trimethylolpropane triisostearate has a lubricating viscosity,
and discloses its use in combination with trimethylolpropane
1 The appellant indicates that as used by the appellant, “environmentally friendly” refers
to thickeners which are naturally occurring (specification, page 12, lines 23-26).
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