申请人:Chevron Chemical Company
公开号:US05713966A1
公开(公告)日:1998-02-03
Polyalkyl hydroxyaromatic esters having the formula: ##STR1## or a fuel-soluble salt thereof; where R.sub.1 and R.sub.2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R.sub.3 is a polyalkyl group having a weight average molecular weight in the range of about 450 to 5,000; and x is an integer from 0 to 10. The polyalkyl hydroxyaromatic esters of formula I are useful as fuel additives for the prevention and control of engine deposits.
具有以下公式的聚烷基羟基芳香酯:## STR1 ## 或其燃料可溶性盐;其中R.sub.1和R.sub.2独立地表示氢、羟基、1至6个碳原子的低烷基或1至6个碳原子的低烷氧基;R.sub.3是具有450至5,000范围内的重量平均分子量的聚烷基基团;x是0到10的整数。公式I的聚烷基羟基芳香酯可用作燃料添加剂,用于预防和控制发动机沉积物。