| 摘要 |
Lubricants having a viscosity suitable for a refrigeration lubricant as well as good miscibility with common refrigerants (including R-134a) comprise at least one oil corresponding to the formula Z-C(E)(E')p-Qs in which Z is alkyl, cycloalkyl, or -(CTT'-CT''G)w-CTT'-CHT''G; Q is -(CTT'-CT''G)t-CTT'-CHT''G; T, T', and T'' are independently selected from hydrogen G', and organic groups containing up to 20 carbons; E, E', G, and G' are independently selected from -COOR, -C(O)R', and -CN electron withdrawing groups wherein R and R' represent hydrocarbyls containing 1-30 carbons, with the proviso that at least about 50% of the electron withdrawing groups are -COOR; p is zero or one; s is respectively two or one; and each of t and w represents zero or a positive integer.
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