| 摘要 |
<p>Lubricating oils and fuel oils contain ashless dispersants as well as azole- or azine-aminopolysulphides of formula (I) (where A is a residue completing a 5- or 6-membered ring, n >=2, X is O, S or NR3, R1 and R2 are H atoms or H- and C-contg. gps. of form part of an H- and C-contg. ring, R3 is H or an H- and C-contg. gp.). Cpds. (I) act as ashless antiwear agents and also reduce copper and lead corrosion.</p> |
