Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same
申请人:Chevron Chemical Company LLC
公开号:EP0982322A1
公开(公告)日:2000-03-01
Esters of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula:
or a fuel soluble salt thereof; wherein
R is a polyalkyl or polyalkenyl group having an average molecular weight in the range of about 450 to about 5,000;
n is an integer from 2 to 5; and Z is a moiety selected from the group consisting of
wherein R1 is a hydroxy, nitro, cyano or -(CH2)x-NR3R4, wherein R3 and R4 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms and x is 0 or 1; and R2 is hydrogen, hydroxy, nitro, cyano or -(CH2)y-NR5R6, wherein R5 and R6 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms and y is 0 or 1.
The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.
多烷基或多烯基 N-羟基烷基琥珀酰亚胺的酯,其式为
或其可溶于燃料的盐; 其中
R 是多烷基或多烯基,其平均分子量在约 450 至约 5,000 之间;
n 是 2 至 5 的整数;以及 Z 是选自以下组别的分子
其中 R1 是羟基、硝基、氰基或-(CH2)x-NR3R4,其中 R3 和 R4 独立地是氢或 1 至 6 个碳原子的低级烷基,且 x 是 0 或 1;以及 R2 是氢、羟基、硝基、氰基或-(CH2)y-NR5R6,其中 R5 和 R6 独立地是氢或 1 至 6 个碳原子的低级烷基,且 y 是 0 或 1。
式 I 的化合物可用作预防和控制发动机沉积物的燃料添加剂。