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    • 38. 发明授权
    • Refrigerant mixtures comprising tetrafluoropropenes and difluoromethane and uses thereof
    • 包含四氟丙烯和二氟甲烷的制冷剂混合物及其用途
    • US09540555B2
    • 2017-01-10
    • US14415633
    • 2013-08-23
    • Barbara Haviland Minor
    • Barbara Haviland Minor
    • C09K5/04F25B9/00F25B45/00
    • C09K5/045C09K2205/126C09K2205/128C09K2205/22C09K2205/40F25B9/006F25B45/00F25B2400/18
    • In accordance with the present invention compositions are disclosed. The compositions consist of (A) a refrigerant component consisting essentially of (1) at least one refrigerant having an OEL less than 400; and (2) a combination of refrigerants, each having an OEL greater than 400, consisting essentially of (i) HFC-32; and (ii) trans-HFO-1234ze; and optionally (B) a non-refrigerant component; wherein component (A)(2) of the refrigerant component is present in an amount sufficient to provide an overall OEL for the refrigerant component of at least 400. The refrigerant mixtures of the refrigerant component are useful as components in compositions also containing non-refrigerant components (e.g. lubricants), in processes to produce refrigeration, in methods for replacing refrigerant R-410A, and in air conditioning and heat pump apparatus.
    • 根据本发明,公开了组合物。 组合物由(A)制冷剂组分组成,其基本上由(1)至少一种OEL小于400的制冷剂组成; 和(2)各自具有大于400的OEL的制冷剂的组合,其基本上由(i)HFC-32组成; 和(ii)反式HFO-1234ze; 和(B)非致冷组分; 其中制冷剂组分的组分(A)(2)以足以提供至少400的制冷剂组分的总OEL的量存在。制冷剂组分的制冷剂混合物可用作组合物中还含有非制冷剂 组件(例如润滑剂),制冷过程中,制冷剂R-410A的替代方法以及空调和热泵设备。