Fuel additive mixtures for gasolines with synergistic IVD...

Details Fuel additive mixtures for gasolines with synergistic IVD... Fuel additive mixtures for gasolines with synergistic IVD...

2003-03-05

2009-10-13

Toomer, Cephia D (Department: 1797)

Fuel and related compositions

Liquid fuels

Organic nitrogen compound containing

C044S443000

Reexamination Certificate

active

07601185

ABSTRACT:
Novel fuels for gasoline engines comprise a synergistic mixture of a detergent additive component (A) and a synthetic carrier oil component (B),i) the detergent additive component (A) comprising at least one compound having a basic nitrogen atom which is substituted by a hydrocarbyl radical having a number average molecular weight of from about 500 to 1 300, and the detergent additive component (A) being contained in the fuel in an amount of from about 30 to 180 ppm by weight; andii) the carrier oil component (B) comprising at least one compound of the following formula Iin-line-formulae description="In-line Formulae" end="lead"?R—O-(A-O)x—H  (I)in-line-formulae description="In-line Formulae" end="tail"? whereR is a straight-chain or branched C6-C18-alkyl group;A is a C3- or C4-alkylene group; andx is an integer from 5 to 35;the carrier oil component (B) being contained in the fuel in an amount of from about 10 to 180 ppm by weight.

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