Patent ID: 11884890
Assignee: AFTON CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 14:
15. A gasoline fuel composition comprising
about 55 to about 125 ppmw of a Mannich detergent including the reaction product of a hydrocarbyl-substituted phenol, one or more aldehydes, and one or more amines, wherein the Mannich detergent has the structure of Formula I:, wherein R1 is hydrogen or a C1 to C4 alkyl group, R2 is a hydrocarbyl group having a number average molecular weight of about 500 to about 3000, R3 is a C1 to C4 alkylene or alkenyl group, and R4 and R5 are, independently, hydrogen, a C1 to C12 alkyl group, or a C1 to C4 alkyl amino C1-C12 alkyl group;
about 4 to about 15 ppmw of a quaternary ammonium salt additive has the structure of Formula II

[(R10)(R11)N—(CH2)n—Xm—(CH2)n—Xm—(CH2)n—N⊕(R7)(R8)(R9)]M⊖  (Formula II)

wherein each X is a bivalent moiety selected from the group consisting of —O—, —N(R12)—, —C(O)—, —C(O)O—, or —C(O)NR12; each R7, R8, and R9 are independently alkyl groups containing 1 to 8 carbon atoms; R10 and R11 are independently selected from hydrogen, an alkyl group, an acyl group, or a hydrocarbyl substituted acyl group, the hydrocarbyl substituent of one or both of R10 and R11 having a number average molecular weight of about 700 or greater; R12 is independently a hydrogen or a group selected from C1-6 aliphatic, phenyl, or alkylphenyl; each m is independently an integer of 0 or 1 with at least one m being 1; each n is independently an integer of 1 to 10; and M⊖ is a carboxylate; and
about 15 to about 40 ppmw of an alkoxylated alcohol, wherein a weight ratio of the alkoxylated alcohol to the Mannich detergent is about 0.8 or less, wherein the alkoxylated alcohol is a polyether having the structure of Formula Va:, wherein R6 is an aryl group or a linear, branched, or cyclic aliphatic group having 5 to 50 carbons, R7 is a C1 to C4 alkyl group, and n is an integer from 5 to 100; and
wherein a weight ratio of the Mannich detergent to the quaternary ammonium salt additive is about 4:1 to about 10:1.