| abstract |
A fuel additive having the formula: <IMAGE> wherein A1 is amino, lower alkylamino or dialkylamino, or a polyamine radical; R1 and R2 are independently hydrogen, hydroxy, lower alkyl or lower alkoxy; R3 and R4 are independently hydrogen or lower alkyl; x is an integer from 0 to 10; n is an integer from 0 to 100; and when n is 0 to 10, R5 is polyalkyl having an average molecular weight of 450 to 5,000; and when n is 5 to 100, R5 is hydrogen, alkyl, phenyl, aralkyl, alkaryl or an acyl group having the formula: <IMAGE> wherein R6 is alkyl, phenyl, aralkyl or alkaryl. |