C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/32 (2006.01) C07C 229/56 (2006.01) C07C 229/60 (2006.01) C08G 65/333 (2006.01) C08G 65/337 (2006.01) C10L 1/22 (2006.01) C10L 1/238 (2006.01) C10L 1/2387 (2006.01) C10L 10/00 (2006.01)
Patent
CA 2255506
A polyamine-containing poly(oxyalkylene) aromatic ester having the formula: (see fig. I) or a fuel-soluble salt thereof; where R1 is a polyamine moiety having about 2 to about 12 amine nitrogen atoms and about 2 to about 40 carbon atoms, wherein the polyamine moiety is connected to the aromatic ring through one of its amine nitrogen atoms, R2 and R3 are independently hydrogen or lower alkyl and each R2 and R3 is independently selected in each ~O~CHR2~CHR3~unit; R4 is hydrogen, alkyl having 1 to about 100 carbon atoms, phenyl, aralkyl having about 7 to about 100 carbon atoms or alkaryl having about 7 to about 100 carbon atoms, or an acyl group of the formula: (see fig. II) where R5 is alkyl having 1 to about 30 carbon atoms, phenyl, aralkyl having about 7 to about 36 carbon atoms or alkaryl having about 7 to about 36 carbon atoms; and y is an integer from about 5 to about 100. The polyamine-containing poly(oxyalkylene) aromatic esters of the present invention are useful as fuel additives for the prevention and control of engine deposits.
Chevron Chemical Company Llc
Sim & Mcburney
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