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

Claim 8:
9. 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 LF, FG, GO, OB, and BL that connect the following 5 points:
point L (74.0, 19.9, 6.1),
point F (49.1, 25.9, 25.0),
point G (0.0, 48.6, 51.4),
point O (0.0, 0.0, 100), and
point B (73.9, 0.0, 26.1),
or on the line segments (excluding the line segments GO and OB),
the line segment LF is represented by coordinates

(y=0.0021x2−0.4975x+45.264),
the line segment FG is represented by coordinates

(y=0.0031x2−0.6144x+48.6), and
the line segments GO, OB, and BL are straight lines.