| abstract |
A refrigeration lubricant suitable for use with R-134a-type refrigerants comprises at least one dialkanolamine diester-amide oil corresponding to one of the formulas: ##STR1## in which formulas R is a hydrocarbylene group containing 1-10 carbons; n represents zero or one; each R' is independently selected from alkylene groups containing 1-10 carbons; R" is hydrogen or a hydrocarbyl group containing 1-10 carbons; and each G, when not linked with another G, is independently selected from hydrocarbyl groups containing 1-10 carbons or, when linked with another G, is a hydrocarbylene group which, together with the colinked G, forms a hydrocarbylene group containing 1-10 carbons. |