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    • 5. 发明授权
    • Refrigerant mixtures containing difluoromethane (HFC-32), pentafluoroethane (HFC-125) and 1,1,1,2-Tetrafluoroethane (HFC-134a)
    • 含有二氟甲烷(HFC-32),五氟乙烷(HFC-125)和1,1,1,2-四氟乙烷(HFC-134a)的制冷剂混合物,
    • US06508950B1
    • 2003-01-21
    • US09692189
    • 2000-10-20
    • Jong-Sung LimByung-Gwon LeeJae-Duck KimSang-Deuk LeeHoon-Sik Kim
    • Jong-Sung LimByung-Gwon LeeJae-Duck KimSang-Deuk LeeHoon-Sik Kim
    • C09K504
    • C09K5/045C09K2205/12C09K2205/43
    • The present invention relates to novel refrigerant mixtures as a substitute for chlorodifluoromethane (CHClF2, HCFC-22). More specifically, the invention is directed to refrigerant mixtures that comprise: difluoromethane (CH2F2, HFC-32) as the first component; pentafluoroethane (CHF2CF3, HFC-125) as the second component; 1,1,1,2-tetrafluoroethane (CH2FCF3, HFC-134a) as the third component; any one of cyclopropane (C3H6, RC-270), 1,1-difluoroethane (CH3CHF2, HFC-152a), 1,1,1,2,3,3,3-heptafluoropropane (CF3CHFCF3, HFC-227ea), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb), octafluorocyclobutane (C4F8, RC-318), 1,1,1,2,3,3-hexafluoropropane (CHF2CHFCF3, HFC-236ea), bis(difluoromethyl)ether (CHF2OCHF2, HFE-134), pentafluoroethylmethylether (CF3CF2OCH3, HFE-245), n-pentane (C5H12, R-601) and isopentane ((CH3)2CHCH2CH3, R-601a) as the fourth component. The refrigerant mixtures of the invention have working effects equal to that of HCFC-22 but does not have the risk of causing destruction to the ozone layer and can therefore be used as alternative refrigerants to HCFC-22.
    • 本发明涉及作为氯二氟甲烷(CHClF 2,HCFC-22)的替代物的新型制冷剂混合物。 更具体地说,本发明涉及制冷剂混合物,其包含:作为第一组分的二氟甲烷(CH 2 F 2,HFC-32);作为第二组分的五氟乙烷(CHF 2 CF 3,HFC-125); 1,1,1,2-四氟乙烷 ,HFC-134a)作为第三成分;环丙烷(C 3 H 6,RC-270),1,1-二氟乙烷(CH 3 CHF 2,HFC-152a),1,1,1,2,3,3,3-七氟丙烷 (CF 3 CHFCF 3,HFC-227ea),1,1,1,2,2-五氟丙烷(CH 3 CF 2 CF 3,HFC-245cb),八氟环丁烷(C 4 F 8,RC-318),1,1,1,2,3,3-六氟丙烷 CHF2CHFCF3,HFC-236ea),双(二氟甲基)醚(CHF2OCHF2,HFE-134),五氟乙基甲基醚(CF3CF2OCH3,HFE-245),正戊烷(C5H12,R-601)和异戊烷((CH 3)2CHCH2CH3,R-601a )作为第四个组成部分。 本发明的制冷剂混合物具有与HCFC-22相当的工作效果,但不具有对臭氧层造成破坏的风险,因此可用作HCFC-22的替代制冷剂。