Patent ID: 11905454
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  F | IPC C  F

Claim 0:
1. A refrigerant comprising at least about 99.5% by weight of a blend of four compounds, said blend consisting of:
from about 46% by weight to less than 48% by weight difluoromethane (HFC-32), from about 11% by weight to about 12% by weight pentafluoroethane (HFC-125),
from about 34% by weight to about 36% by weight trifluoroiodomethane (CF3I) and
from about 5% by weight to about 7% by weight 2,3,3,3-tetrafluoropropene (HF0-1234yf),
wherein the percentages are based on the total weight of the four compounds in the blend and
wherein said refrigerant composition has: (a) a (HFC32+HFO1234yf):(CF3I+HFC125) ratio of from greater than about 1:1 to less than 1.2:1; and (b) an evaporator glide of less than 2° C.