US 12,473,477 B2
Refrigerant-containing composition, heat transfer medium, and heat cycle system
Mitsushi Itano, Osaka (JP); Hitomi Kuroki, Osaka (JP); and Kazuhiro Takahashi, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Jul. 15, 2022, as Appl. No. 17/865,923.
Application 17/865,923 is a division of application No. 17/251,514, granted, now 11,421,137, previously published as PCT/JP2019/023384, filed on Jun. 12, 2019.
Claims priority of application No. 2018-112060 (JP), filed on Jun. 12, 2018.
Prior Publication US 2022/0348810 A1, Nov. 3, 2022
Int. Cl. C09K 5/04 (2006.01)
CPC C09K 5/045 (2013.01) [C09K 2205/106 (2013.01); C09K 2205/126 (2013.01); C09K 2205/40 (2013.01)] 5 Claims
 
1. A composition comprising a refrigerant,
the refrigerant comprising CF3I, CO2 (R744), HFC-32, and at least one compound A selected from the group consisting of trifluoroethylene (HFO-1123), trans-1,2-difluoroethylene [(E)-HFO-1132], cis-1,2-difluoroethylene [(Z)-HFO-1132], fluoroethylene (HFO-1141), and 3,3,3-trifluoropropyne (TFP),
wherein the refrigerant comprises 38 to 69 mass % of CF3I, 1 to 10 mass % of CO2, based on the total amount of CF3I, CO2, HFC-32, and compound A taken as 100 mass %.