发明授权
US06508950B1 Refrigerant mixtures containing difluoromethane (HFC-32), pentafluoroethane (HFC-125) and 1,1,1,2-Tetrafluoroethane (HFC-134a)
失效
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，
- 专利标题： Refrigerant mixtures containing difluoromethane (HFC-32), pentafluoroethane (HFC-125) and 1,1,1,2-Tetrafluoroethane (HFC-134a)
- 专利标题（中）： 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，
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申请号： US09692189申请日： 2000-10-20
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公开(公告)号： US06508950B1公开(公告)日： 2003-01-21
- 发明人: Jong-Sung Lim , Byung-Gwon Lee , Jae-Duck Kim , Sang-Deuk Lee , Hoon-Sik Kim
- 申请人： Jong-Sung Lim , Byung-Gwon Lee , Jae-Duck Kim , Sang-Deuk Lee , Hoon-Sik Kim
- 优先权： KR99-48069 19991102
- 主分类号： C09K504
- IPC分类号： C09K504
摘要：
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.
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