| 摘要 |
#CMT# #/CMT# Refrigerant fluid with a very low ozone depletion potential and global warming potential, contains at least one optionally fluorinated linear 3C diether other than perfluorodimethoxymethane. #CMT# : #/CMT# Refrigerant fluid with an ozone depletion potential (ODP) of zero or less than 0.02 and a global warming potential (GWP) of less than 150, containing at least one 3C linear diether of formula R 1-O-R 3-O-R 2(I), in which R 1, R 2methyl (optionally partly or completely fluorinated); R 3optionally fluorinated methylene, i.e. -CH 2-, -CHF- or -CF 2- , not including the compound CF 3-O-CF 2-O-CF 3. An independent claim is also included for a device for transferring heat in a compression cycle containing this fluid. #CMT#USE : #/CMT# In air conditioners, especially for vehicles, especially as a replacement for 1,1,1,2-tetrafluoro-ethane. #CMT#ADVANTAGE : #/CMT# Refrigerant fluid with a very low greenhouse effect, especially with an ozone depletion potential of zero or less than 0.02 and a global warming potential of less than 150. #CMT#ORGANIC CHEMISTRY : #/CMT# Preferred Composition: Preferred (I) are compounds such as difluoromethoxy-difluoro-fluoromethoxy-methane, difluoromethoxymethoxy-trifluoromethane and bis-trifluoromethoxy-methane etc. The fluid may also contain at least one compound selected from hydrocarbons, hydrofluorocarbons, (hydro)fluoro-olefins, (hydro)fluoro-ethers, cyclic (hydro)fluoro-ethers, (hydro)fluoro-olefin ethers (cyclic or non-cyclic), bis-trifluoromethyl sulfide, dimethyl ether and (hydro)fluoroiodocarbons. The fluid is used in air conditioners, especially as a replacement for 1,1,1,2-tetrafluoroethane. Preferred Devices: Air conditioners. |
