Patent ID: 7390427

Claim:
A heat-transfer fluid selected from CF 3 CFHCF 2 OC 3 H 6 OCF 2 CFHCF 3 , CF 3 OCFHCF 2 OC 2 H 4 OCF 2 CFHOCF 3 , C 3 F 7 OCFHCF 2 OC 2 H 4 OCF 2 CFHCF 3 , CF 3 CFHCF 2 OCH 2 C 3 F 6 CH 2 OCF 2 CFHCF 3 , and mixed isomers of (C 2 F 5 )(CF 3 CFH)CFOC 2 H 4 OCF(CFHCF 3 )(C 2 F 5 ).