C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 235/44 (2006.01) C07C 233/69 (2006.01) C07C 235/48 (2006.01) C07C 237/28 (2006.01) C07C 237/32 (2006.01) C08G 65/32 (2006.01) C08G 65/332 (2006.01) C08G 65/333 (2006.01) C08G 65/48 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/238 (2006.01) C10L 1/2387 (2006.01) C10L 10/00 (2006.01) C10L 10/04 (2006.01) C10L 1/16 (2006.01) C10L 1/24 (2006.01) C10L 1/30 (2006.01)
Patent
CA 2165224
Poly(oxyalkylene) aromatic amides having the formula: Image ( I) or a fuel-soluble salt thereof; wherein A is hydroxy, nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R1 and R2 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R3 is hydrogen or lower alkyl having 1 to 6 carbon atoms; R4 is hydrogen or an acyl group of the formula: Image wherein A1 is hydroxy, nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R5 and R6 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms and each R5 and R6 is independently selected in each -O-CHR5-CHR6- unit; R7 is hydrogen, alkyl having 1 to 100 carbon atoms, -50- phenyl, aralkyl having 7 to 100 carbon atoms, alkaryl having 7 to 100 carbon atoms; R8 and R9 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; x is an integer from 2 to 5; y is an integer from 0 to 2; and z is an integer from 5 to 100. The poly(oxyalkylene) aromatic amides of formula I are useful as fuel additives for the prevention and control of engine deposits.
Chevron Chemical Company
Sim & Mcburney
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