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US6153118A Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants 失效
含有冷冻机油和无氯氟碳制冷剂的流体组合物

Fluid compositions containing refrigerator oils and chlorine-free
fluorocarbon refrigerants
摘要:
A refrigerator oil for use in compressors using therein a hydrogen-containing halogenocarbon as a refrigerant, consisting essentially of as a base oil at least two esters selected from the group consisting of a specific pentaerythritol ester such as an ester of pentaerythritol with a mono- or dicarboxylic acid, a specific polyol ester such as an ester of trimethylolethane with a mono- or dicarboxylic acid, a specific ester such as an ester of ethylene glycol and a dicarboxylic acid, and a specific polyol ester synthesized from a neopentyl type polyhydric alcohol, a monocarboxylic acid and a dicarboxylic acid; and further comprising at least one kind of an epoxy compound.
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