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Patent Searching and Data


Title:
COMPOSITION CONTAINING REFRIGERANT, AND REFRIGERATION METHOD USING SAID COMPOSITION, OPERATING METHOD FOR REFRIGERATION DEVICE, AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/158257
Kind Code:
A1
Abstract:
The present disclosure provides a composition containing a refrigerant, the composition having the characteristics of having a refrigeration capacity and a coefficient of performance (COP) equal to or greater than R404A, and of having an adequately small GWP. The present disclosure specifically provides a composition containing a refrigerant, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132(E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf), the content ratio of HFO-1132(E) being 35.0-65.0 mass% and the content of HFO-1234yf being 65.0-35.0 mass% with respect to the total mass of HFO-1132(E) and HFO-1234yf, and the refrigerant is used for operation of a refrigeration cycle in which the evaporation temperature is -75°C to -5°C.

Inventors:
OHKUBO SHUN (JP)
ITANO MITSUSHI (JP)
YOTSUMOTO YUUKI (JP)
MIZUNO AKIHITO (JP)
GOTOU TOMOYUKI (JP)
YAMADA YASUFU (JP)
Application Number:
PCT/JP2019/050501
Publication Date:
August 06, 2020
Filing Date:
December 24, 2019
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
C09K5/04
Domestic Patent References:
WO2015186557A12015-12-10
WO2010059677A22010-05-27
WO2011163117A12011-12-29
WO2005105947A22005-11-10
Foreign References:
JP2015229767A2015-12-21
JP2016501978A2016-01-21
Other References:
See also references of EP 3739018A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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