Appeal No. 2000-2079
Application 08/883,634
THE INVENTION
The appellants claim a low sulfur diesel fuel or spark
ignition fuel composition containing a specified lubricity aid,
and claim a method for improving the lubricity of a low sulfur
diesel fuel or spark ignition fuel by adding the lubricity aid to
the fuel. Claim 1, directed toward the fuel composition, is
illustrative:
1. A fuel composition of improved lubricity comprising a
lubricity-increasing amount of a lubricity aid dissolved in a
poor lubricity fuel selected from the group consisting of low
sulfur diesel fuel and spark ignition fuels, the lubricity aid
being selected from the group consisting of alkanolamides of
fatty acids, alkanolamides of modified fatty acids and mixtures
thereof, provided that if the lubricity aid is other than an
alkanolamide of an aryl-substituted fatty acid, the composition
further necessarily comprises a haze-inhibiting amount of a
dehazer.
THE REFERENCES
Smith 2,456,569 Dec. 14, 1948
Malec 4,204,481 May 27, 1980
Shubkin 4,243,538 Jan. 6, 1981
Zimmerman et al. (Zimmerman) 4,836,829 Jun. 6, 1989
Caprotti et al. (Caprotti) WO 94/17160 Aug. 4, 1994
(PCT application)
THE REJECTION
Claims 1-5 and 8-32 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Zimmerman in view of Shubkin, Smith,
Malec and Caprotti.
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