US 12,305,109 B2
Composition containing refrigerant, use of same, freezer having same, and method for operating said freezer
Mitsushi Itano, Osaka (JP); Shun Ohkubo, Osaka (JP); Daisuke Karube, Osaka (JP); and Satoshi Tokuno, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Dec. 17, 2021, as Appl. No. 17/554,591.
Application 17/554,591 is a continuation of application No. PCT/JP2020/024122, filed on Jun. 19, 2020.
Claims priority of application No. 2019-114157 (JP), filed on Jun. 19, 2019.
Prior Publication US 2022/0112416 A1, Apr. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 5/04 (2006.01); F25B 41/40 (2021.01)
CPC C09K 5/045 (2013.01) [F25B 41/40 (2021.01); C09K 2205/122 (2013.01); C09K 2205/126 (2013.01); C09K 2205/22 (2013.01); C09K 2205/40 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)) and difluoromethane (R32) in a total amount of 99.5 mass % or more based on the entire refrigerant, wherein HFO-1132(E) is present in an amount of 25 to 27 mass % based on the total of HFO-1132(E) and R32, and R32 is present in an amount of 73 to 75 mass % based on the total of HFO-1132(E) and R32.