Patent ID: 11939515
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  F | IPC C  F

Claim 12:
13. A composition comprising a refrigerant, the refrigerant comprising difluoromethane (HFC-32), 2,3,3,3-tetrafluoropropene (HFO-1234yf), and at least one of 1,1-difluoroethylene (HFO-1132a) and tetrafluoroethylene (FO-1114), wherein
the refrigerant comprises HFC-32, HFO-1234yf, and HFO-1132a,
when the mass % of HFC-32, HFO-1132a, and HFO-1234yf based on their sum in the refrigerant is respectively represented by x, y, and z, coordinates (x,y,z) in a ternary composition diagram in which the sum of HFC-32, HFO-1132a, and HFO-1234yf is 100 mass % are within the range of a figure surrounded by line segments QJ, JB′, and B′Q that connect the following 3 points:
point Q (59.1, 12.7, 28.2),
point J (33.5, 0.0, 66.5), and
point B′ (59.0, 0.0, 40.2),
or on the line segments (excluding the line segment JB′),
the line segment QJ is represented by coordinates

(y=0.0083x2−0.2719x−0.1953), and
the line segments JB' and B′Q are straight lines.