| abstract |
Compositions comprising a) a functional liquid or an internal combustion engine fuel and b) at least one compound of the general formula I <IMAGE> (I) wherein R1 is -(CH2-X)n-R, where X=-S- or -O-, n=0 or 1 and R is an alkyl group of 1 to 18 carbon atoms, a phenyl group, a phenyl group which is substituted by at least one C1-C18alkyl group, a phenyl-C1-C4alkyl group or a phenyl-C1-C4alkyl group which is substituted by at least one C1-C4alkyl group, or R1 is an alkyl group of 1 to 18 carbon atoms which is substituted by at least one OH group, or R1 is a <IMAGE> group in which the alkyl moiety contains 1 to 18 carbon atoms, and R2 and R3 are the same or different and are -H or, independently of R1, have the same meanings as R1, and M is B, Al, Fe, Cr, Sb or Bi, or M is a group M'-R' or a group M'-OR'', where M' is Ti, Zr or Sn, and R' and R'' is C1-C18alkyl or R' is <IMAGE> wherein M' is as defined above, and R1', R2' and R3' have the meanings of R1, R2 and R3, or R'' is Li, Na or K or is <IMAGE> wherein M' is as defined above and M'' is Mg, Ca, B, Al, Fe, Cr, Sb, Bi, Zn, Ti, Ni or Cu, q has the valence of M'', and R1', R2' and R3' have the respective meanings of R1, R2 and R, or M is -VO. The compounds of formula act, for example, in lubricants as antiwear additives and extreme pressure additives, and also as stablisers for natural or regenerated polymers. |