发明名称 |
REFRIGERANT MIXTURES COMPRISING TETRAFLUOROPROPENES, DIFLUOROMETHANE, PENTAFLUOROETHANE, AND TETRAFLUOROETHANE AND USES THEREOF |
摘要 |
Compositions are disclosed which contain a refrigerant component consisting essentially of at least one refrigerant having an OEL less than 400; and a combination of refrigerants, each having an OEL greater than 400, consisting essentially of HFC-134a; HFC-32; trans-HFO-1234ze; and optionally at least one refrigerant selected from the group consisting of HFC-134 and HFC-125; provided that HFC-134a is not greater than 26 weight percent of the refrigerant component and the total of HFC-134a and HFC-134 is not less than 20 weight percent of the refrigerant component; and optionally a non-refrigerant component; wherein the refrigerant component has an overall OEL of at least 400 and wherein components the refrigerant component is non-flammable. These compositions are useful in processes to produce refrigeration, in methods for replacing refrigerant R-404A or R-507A, and in refrigeration apparatus. |
申请公布号 |
EP2861690(A4) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20130807795 |
申请日期 |
2013.06.17 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MINOR, BARBARA, HAVILAND;KONTOMARIS, KONSTANTINOS |
分类号 |
C09K5/04;F25B47/00 |
主分类号 |
C09K5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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