发明名称 |
COMPOSITIONS OF DIFLUOROMETHANE, PENTAFLUOROETHANE, 1,1,1,2-TETRAFLUOROETHANE AND HYDROCARBONS |
摘要 |
The present invention relates to azeotrope-like compression refrigerant compositions consisting essentially of difluoromethane (HFC-32), pentafluoroethane (HFC-125), 1,1,1,2-tetrafluoroethane (HFC-134a) and 0.5-5 weight percent of a hydrocarbon selected from the group consisting of: n-butane; isobutane; n-butane and 2-methylbutane; n-butane and n-pentane; isobutane and 2-methylbutane; and isobutane and n-pentane. |
申请公布号 |
EP1163313(B1) |
申请公布日期 |
2004.10.06 |
申请号 |
EP20000918231 |
申请日期 |
2000.03.22 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
BIVENS, DONALD, BERNARD;MINOR, BARBARA, HAVILAND;YOKOZEKI, AKIMICHI |
分类号 |
F25B1/00;C07C19/08;C09K5/04 |
主分类号 |
F25B1/00 |
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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