A New Synthetic Hybrid Refrigeration Oil for R410A and R407C

There is a need to improve conventional polyolester lubricants that are currently being evaluated as the optimal refrigeration base oil for the alternative refrigerants R41 OA and R407C, which are expected to be designated as the replacement ofHCFC 22. Prior studies show that the conventional polyolesters and other lubricants have poor hydrolysis and solubility. This paper is an introduction to a new hybrid polyolester made by a simple synthesis of alcohols, olefins and carbon monoxide as raw materials, and it's evaluation process as a refrigeration oil as compared to conventional lubricants. Having a 100% alpha branched structure with a wide temperature miscibility range, research on this hybrid polyolester shows excellent hydrolytical, oxidation and chemical stability and lubricity not seen in esters introduced in the past.