Composition for use in compression Refrigeration and method to improve the Lubrication in the compression Refrigeration Equipment

摘要

The present Invention relates to a composition for use in compression Refrigeration,Characterized in that it comprises at least: (a) a compound selected from the group consisting of a tetrafluoroetano and pentafluoroetano; and (b) an amount sufficient to provide LubricationAt least a polyoxyalkylene glycol which is Random with respect to the monofunctional hydroxyl groups and is based at 25 to 75 percent of ethylene oxide and 75 percent to 25 percent for oxidePileno, which has a viscosity in the 37.78 degrees C (100 degrees F), 100 to 1200 and is miscible in combination with the component (a) in the temperature range from - 40 degrees to + 20 degrees C.