| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a composition containing a hydrofluorocarbon and a fluoroether, which is used as a refrigerant. <P>SOLUTION: This composition comprises HFC-32, and a cyclic or an acyclic hydrofluoroether of the formula: C<SB>a</SB>F<SB>b</SB>H<SB>2a+2-b</SB>O (wherein (a) is 2 or 3; and (b) is 3, 4, 6, 7, or 8, and when (a) is 3, (b) is 5), CF<SB>3</SB>OCF<SB>2</SB>OCF<SB>3</SB>, 125E, C216E2, 227caEαβ, 227caEβγ, 227eaE or 236faE. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
