发明授权
US5820777A Blended polyol ester lubricants for refrigerant heat transfer fluids 失效
用于制冷剂传热流体的混合多元醇酯润滑剂

Blended polyol ester lubricants for refrigerant heat transfer fluids
摘要:
From not more than three blending stocks, it is possible to prepare a wide variety of mixtures of esters of hindered polyhydric alcohols that are especially valuable lubricants for chlorine-free fluorocarbon refrigerant heat transfer fluids, particularly Refrigerant 134a (1,1,1,2-tetrafluoroethane).
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