| 摘要 |
<p>This invention relates to a composition, comprising: (A) at least one compound selected from the group consisting of (A-1) a compound represented by the formula T<1> T<2>-P (X<1>)-(S)n-S -C (X<2>)-L<1> (A-2) a compound represented by the formula T<3> T<4>-P (X<3>)-(S)n -S -(DMTD) -S -J (A-3) a compound represented by the formula L<2> -C (X<4>)-(S)n-S -(DMTD) -S- G and (A-4) mixture of two or more of (A-1), (A-2) and (A-3); wherein in Formulae (A-I), (A-II) and (A-III): (DMTD) is a dimercaptothiadiazole nucleus; J is H, SR, -S-P(X<5>)-T<5> T<6> or -S-C (X<6>)-L<3> G is H, SR or -S -C (X<7>)-L<4> T<1>, T<2>, T<3>, T<4>, T<5> and T<6> are independently R, SR or OR; L<1>, L<2>, L<3> and L<4> are independently R, SR, OR or NRR; X<1>, X<2>, X<3>, X<4>, X<5>, X<6> and X<7> are independently O or S; each R is independently a hydrocarbyl group; and n is 1 to 4. In one embodiment, the inventive composition further comprises (B) an acylated nitrogen-containing compound having a substituent of at least about 10 aliphatic carbon atoms, (C) a phosphorus compound, (D) a thiocarbamate, and/or (E) an organic sulfide other than (A). The invention also relates to a lubricating composition or functional fluid characterized by enhanced antiwear properties and comprising the foregoing component (A) and, optionally, one or more of the foregoing components (B), (C), (D) and/or (E).</p> |
