COMPOSITION INCLUDING DIFLUOROMETHANE (HFC-32), PENTAFLUOROETHANE (HFC-125), AND 1,1,1,2-TETRAFLUOROETHANE (HFC-134A)

Title:

COMPOSITION INCLUDING DIFLUOROMETHANE (HFC-32), PENTAFLUOROETHANE (HFC-125), AND 1,1,1,2-TETRAFLUOROETHANE (HFC-134A)

Document Type and Number:

WIPO Patent Application WO/2015/083834

Kind Code:

A1

Abstract:

Provided is a refrigerant that has (1) a superior air conditioning COP compared to R410a, which is an existing refrigerant alternative to R22 and (2) an equal or superior refrigerating effect in comparison with R22, even under usage conditions in which the condensation temperature setting is high, such as when the outside air temperature is high. The present invention pertains to a composition containing the refrigerant, wherein the refrigerant contains HFC-32, HFC-125, and HFC-134a. In a triangular composition diagram in which the apexes denote the three components, the mass ratio of the three components is within a triangular range, the apexes of which denote the following three points: point (A) (HFC-32/HFC-125/HFC-134a=36/25/39 mass%); point (B) (HFC-32/HFC-125/HFC-134a=36/31/33 mass%); and point (C) (HFC-32/HFC-125/HFC-134a=43/34/23 mass%).

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Inventors:

TSUCHIYA TATSUMI
SHIBANUMA TAKASHI
YAMADA YASUFU
KUROKI HITOMI

Application Number:

PCT/JP2014/082309

Publication Date:

June 11, 2015

Filing Date:

December 05, 2014

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

C09K5/04; C10M105/38; C10M107/24; C10M107/34; C10N40/30

Foreign References:

JP2013529703A	2013-07-22
JP2011084652A	2011-04-28
JPH09324175A	1997-12-16
JP3186065B2	2001-07-11
JPH06503828A	1994-04-28
JPH03170585A	1991-07-24

Attorney, Agent or Firm:

SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)

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