US 11,939,515 B2
Refrigerant-containing composition, heat transfer medium, and heat cycle system
Mitsushi Itano, Osaka (JP); Shun Ohkubo, Osaka (JP); Hitomi Kuroki, Osaka (JP); Yasufu Yamada, Osaka (JP); Tatsumi Tsuchiya, Osaka (JP); and Kenji Gobou, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/260,838
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
PCT Filed Jul. 8, 2019, PCT No. PCT/JP2019/027031
§ 371(c)(1), (2) Date Jan. 15, 2021,
PCT Pub. No. WO2020/017386, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 2018-134448 (JP), filed on Jul. 17, 2018; application No. 2018-227398 (JP), filed on Dec. 4, 2018; and application No. 2018-230259 (JP), filed on Dec. 7, 2018.
Prior Publication US 2021/0269693 A1, Sep. 2, 2021
Int. Cl. C09K 5/04 (2006.01); F25B 13/00 (2006.01)
CPC C09K 5/045 (2013.01) [F25B 13/00 (2013.01); C09K 2205/22 (2013.01); C09K 2205/40 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A composition comprising a refrigerant, the refrigerant comprising difluoromethane (HFC-32), 2,3,3,3-tetrafluoropropene (HFO-1234yf), and 1,1-difluoroethylene (HFO-1132a), wherein the refrigerant comprises HFC-32 in an amount of 15.0 to 24.0 mass % and HFO-1132a in an amount of 1.0 to 7.0 mass %, based on the total amount of HFC-32, HFO-1234yf, and HFO-1132a taken as 100 mass %.