Heterocyclic compounds containing nitrogen as a fuel...
Heterocyclic compounds useful as additives for lubricant and fue
Heterocyclic nitrogen compound Mannich base derivatives of amino
Heterocyclic nitrogen compound mannich base derivatives of polyo
High functionality low molecular weight oil soluble dispersant a
High molecular weight nitrogen-containing condensates and fuels
Hydroxyimidazolines and polyamine fuel additive compositions