| 摘要 |
1,187,584. Lubricants. BRITISH PETROLEUM CO. Ltd. 1 May, 1968 [16 May, 1967], No. 22686/67. Heading C5F. Lubricants comprise a mineral or synthetic base oil having dissolved therein (i) an alkenyl N-polyamine succinimide; and (ii) a basic zinc salt of formula (RCOO) 6 Zn 4 O, where R is alkyl, cycloalkyl, aryl, alkaryl or aralkyl. Basic salts specified are those derived from naphthenic and 2-ethyl hexanoic acids. |
