Patent ID: 6899820
Filing Date: 2005-05-31
Classification: C09K,C10M,C10N

Abstract:
1. A refrigerant composition comprising: (a) at least one fluorocarbon; (b) at least one oxygenated lubricant selected from the group consisting of polyol esters, polyalkylene glycols and polyvinyl ethers; (c) at least one non-oxygenated lubricant selected from the group consisting of paraffins, napthenes, aromatics and poly-α-olefins; and (d) at least one compatibilizer wherein the compatibilizer is at least one amide represented by the formulae R 1 CONR 2 R 3 and cyclo-[R 4 CON(R 5 )-], wherein R 1 , R 2 , R 3 and R 5 are independently selected from aliphatic and alicyclic hydrocarbon radicals having from 1 to 12 carbon atoms, and at most one aromatic radical 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.