Patent ID: 6991744

Claim:
A lubricant composition for use in compression refrigeration and air conditioning, comprising: (a) at least one lubricant selected from the group consisting of paraffins, napthenes, aromatics and poly-α-olefins; and (b) at least one compatibilizer selected from amides represented by the formulae R 1 CONR 2 R 3 and cyclo-[R 4 CON(R 5 )—], wherein R 1 , R 2 , and R 3 are independently selected from aliphatic and alicyclic hydrocarbon radicals having from 1 to 12 carbon atoms and aromatic radicals having from 6 to 12 carbon atoms, and wherein one of R 1 , R 2 , and R 3 is an aromatic radical having from 6 to 12 carbon atoms; R 5 is selected from aromatic radicals having from 6 to 12 carbon atoms; R 4 is selected from aliphatic hydrocarbylene radicals having from 3 to 12 carbon atoms; and wherein said amides have a molecular weight of from about 120 to about 300 atomic mass units and a carbon to oxygen ratio of from about 7 to about 20, wherein the weight ratio of said lubricant to said compatibilizer is from about 99:1 to about 1:1.