WO1999041325A1 - Composition refrigerante - Google Patents
Composition refrigerante Download PDFInfo
- Publication number
- WO1999041325A1 WO1999041325A1 PCT/KR1998/000167 KR9800167W WO9941325A1 WO 1999041325 A1 WO1999041325 A1 WO 1999041325A1 KR 9800167 W KR9800167 W KR 9800167W WO 9941325 A1 WO9941325 A1 WO 9941325A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- refrigerant
- refrigerant composition
- cyclo
- profane
- Prior art date
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 51
- 239000000203 mixture Substances 0.000 title claims abstract description 35
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920002545 silicone oil Polymers 0.000 claims abstract description 13
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims abstract description 12
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 17
- 230000036541 health Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000001294 propane Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229940035423 ethyl ether Drugs 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910007161 Si(CH3)3 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 235000010855 food raising agent Nutrition 0.000 description 1
- 229960002050 hydrofluoric acid Drugs 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 235000013847 iso-butane Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/11—Ethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
Definitions
- the present invention relates to a refrigerant composition which can be used in automobile air conditioners, refrigerators, freezers and the like. More specifically, the present invention relates to an incombustible non-explosive safe refrigerant composition which includes tri-fluoro-methyl iodide, profane and cyclo-pentane .
- a freezer includes a compressor, a condenser, a liguid receiver, an expansion valve, an evaporator and an oil-water separator.
- the refrigerating cycle is carried out. That is, the refrigerant is spouted through the expansion valve into the evaporator to be evaporated so as to absorb the heat from the surrounding regions (heat absorbing reaction) .
- the evaporated refrigerant is compressed by the compressor, and is sent through the oil-water separator into the condenser to be condensed into a liquid (heat releasing reaction) .
- the refrigerant used has to be well-condensed and well-evaporated under a small pressure and a small temperature difference.
- the typical ones are ammonia, carbon dioxide, and chloro-fluoro-carbon (to be called "CFC" below) .
- the CFC gas is the freon gas which includes R-ll, R-12, R-13, R-22, R-113, R-114, R-500 and R-502.
- the freon gas has solved the problems of the ammonia gas such as the toxicity, metal corrosion, deliquescence, and harm to the human health. Further, the freon gas has a high refrigerating capability, and has other advantages such as non-toxicity, non-explosiveness, non-corrosion, and non-harmfulness to the human health. However, recently it has been recognized that the CFC refrigerants destroy the ozone layer, and particularly the freon gases including R-ll, R-12, R-113, R-114 and R-115 have been subjected to regulations.
- the freon gas R-12 is mostly used in small freezers such as automobile air conditioners and home refrigerators and the like.
- the freon gas R-22 (HCFC) has a large freezing capability compared with the R-12, and therefore, it is used in intermediate and large freezers.
- the HCFC freon gases such as R-113 and R-114 are used in turbo freezers, while R-115 and R-22 are mixed to form an azeotropic mixed refrigerant R-502 so as to be used as a low temperature refrigerant.
- R-22 together with the above freon gases is proposed to be regulated by the European countries and the Green Peace Conference. Therefore, the use of all the freon gases and the azeotropic mixed refrigerants will be prohibited.
- freon refrigerant is mixed with water, then only a small part of the water is dissolved in the freon refrigerant. Therefore, the water is formed into water drops so as to be freezed into ice pieces. The expansion valve is clogged by the ice pieces to obstruct the flow of the refrigerant, with the result that the performance of the freezer is lowered, or that disorders may occur. Therefore water is prohibited in a freezer, and the refrigerating paths have to be completely dried before filling the freon gas. If moisture and air are mixed into the freon gas, then fluoric acid is formed, and thus the compressor and pipes are corroded. Therefore, a drying agent such as silica gel is used, and thus, the moisture has to be avoided by any means in the conventional freezers.
- a drying agent such as silica gel is used, and thus, the moisture has to be avoided by any means in the conventional freezers.
- a low temperature lubricant is used to prevent the wearing of the compressor and the like. This lubricant has to keep the lubricating capability even at a low temperature, and has to be compatible with the refrigerant.
- the low temperature lubricant In the case of the freon refrigerants, the low temperature lubricant is dissolved into the refrigerant down to a certain temperature level. In the freon gas- using freezers, the low temperature lubricant departs from the compressor to circulate through the freezing path so as to return into the compressor.
- the present invention is intended to overcome the above described disadvantages of the conventional techniques.
- silicone oil is added. Silicone oil has the functions of making the composition incombustible, lubricating the compressor, and serving as a catalyst.
- the refrigerant composition according to the present invention is applicable to a freezer including a compressor, a condenser, a liquid receiver, an expansion valve and an evaporator.
- the refrigerant composition according to the present invention includes: tri-fluoro-methyl iodide (CF 3 I) ; one or more paraffinic hydrocarbons selected from a group consisting of profane, cyclo-profane, cyclo-pentane and DME; and silicone oil for making the composition flow smooth.
- CF 3 I tri-fluoro-methyl iodide
- paraffinic hydrocarbons selected from a group consisting of profane, cyclo-profane, cyclo-pentane and DME
- silicone oil for making the composition flow smooth.
- the silicone oil has the functions of making the composition incombustible, lubricating the compressor, and serving as a catalyst.
- the catalytic property is such that it helps the ingredients to form a colloid.
- the refrigerant composition according to the present invention can be used to any freezer which uses the freon gas, and can be used to any existing type of freezers such as the volume compressing type, the reciprocating type, the rotary type, the screw type, the rotary-compressing type, the screw-compressing type and the like.
- the refrigerant composition of the present invention can be used in the existing freezers without modifying their structures.
- the freezer is equipped with an oil separator and a liquid separator.
- standard products ISOVG 10-100 or the like approved by the International Standard Organization
- (ISO) may be used singly or mixed.
- the above refrigerant compositions may be used singly or mixed. Particularly a non-reactive one may be preferable, and it should be easily obtained from the manufacturing process, and should be cheap. In this respect, the paraffinic hydrocarbons should be preferable.
- the igniting point raising agent tri-fluoro- methyl iodide (CF 3 I) should be preferable.
- silicone oil (CH 3 ) 3 Si-0-Si(CH 3 ) 3 ) should be added.
- Example 1 Example 2
- the ingredients were injected through a pipe into a sealed mixing vessel in which air and moisture are deaerated, by using a pressure gauge in the usual way. Then the mixing vessel was rotated to uniformly mix the ingredients, and then the refrigerant composition thus formed was discharged into a gas bomb having a separate valve.
- the refrigerant composition includes tri-fluoro-methyl iodide (existing as gas at the normal temperature) , one or more of paraffinic hydrocarbons such as profane and cyclo- profane. Therefore, the refrigerant composition can be used in automobile air conditioners, home refrigerators and other freezers without modifying the existing structures of the apparatuses. Further, the safety such as non- combustibleness and non-explosiveness is ensured, and the involved metals are not corroded, while there is no harm to the human health. Therefore, the refrigerant composition of the present invention is a new useful refrigerant.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
L'invention concerne une composition réfrigérante qui peut être utilisée dans les climatiseurs d'automobile, les réfrigérateurs, les congélateurs, etc. Cette composition comprend 30 à 45 % en poids d'iodure de trifluorométhyle; 42 à 50 % en poids de propane; 1 à 10 % en poids de cyclopentane; et 0,5 à 1 % en poids d'huile de silicone (diméthylpolysiloxane). On peut l'utiliser dans les climatiseurs d'automobile, les réfrigérateurs domestiques et autres congélateurs, sans modifier les structures existantes des appareils. En outre, son innocuité, c'est-à-dire son caractère non combustible et non explosif par exemple, est assurée, les métaux impliqués ne sont pas corrodés et elle ne présente pas de danger pour la santé humaine. La composition réfrigérante de la présente invention peut donc remplacer les CFC, qui sont toxiques pour l'environnement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU79393/98A AU7939398A (en) | 1998-02-13 | 1998-06-17 | Refrigerant composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1998/4403 | 1998-02-13 | ||
| KR1019980004403A KR100255477B1 (ko) | 1998-02-13 | 1998-02-13 | 냉매 조성물 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999041325A1 true WO1999041325A1 (fr) | 1999-08-19 |
Family
ID=19533030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR1998/000167 WO1999041325A1 (fr) | 1998-02-13 | 1998-06-17 | Composition refrigerante |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100255477B1 (fr) |
| AU (1) | AU7939398A (fr) |
| WO (1) | WO1999041325A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997519A1 (fr) * | 1998-09-29 | 2000-05-03 | Nippon Mitsubishi Oil Corporation | Huile pour machine réfrigérante |
| WO2020116189A1 (fr) * | 2018-12-05 | 2020-06-11 | ダイキン工業株式会社 | Composition de transfert de chaleur |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100492174B1 (ko) * | 2004-08-25 | 2005-06-02 | 함윤식 | 알12 및 알22 대체용 혼합냉매 및 이를 사용하는 냉동시스템 |
| KR100976449B1 (ko) * | 2009-07-13 | 2010-08-17 | 주식회사 와이엠환경연구소 | 냉매 조성물 |
| KR100957043B1 (ko) * | 2009-07-13 | 2010-05-13 | 주식회사 와이엠환경연구소 | 냉매 조성물 |
| KR100969257B1 (ko) * | 2009-09-25 | 2010-07-09 | 주식회사 와이엠환경연구소 | 냉매 조성물 |
| KR100969256B1 (ko) * | 2009-09-25 | 2010-07-09 | 주식회사 와이엠환경연구소 | 냉매 조성물 |
| KR100969258B1 (ko) * | 2009-09-25 | 2010-07-09 | 주식회사 와이엠환경연구소 | 냉매조성물 |
| KR102254272B1 (ko) * | 2018-11-07 | 2021-05-20 | 이선 | 비가연성 친환경 냉매 |
| KR102181412B1 (ko) * | 2018-12-03 | 2020-11-23 | 주식회사 레미 | 비가연성 친환경 냉매 |
| KR102186985B1 (ko) * | 2018-12-03 | 2020-12-04 | 주식회사 레미 | 약가연성 친환경 냉매 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992001762A1 (fr) * | 1990-07-26 | 1992-02-06 | E.I. Du Pont De Nemours And Company | Melanges quasi-azeotropes destines a etre utilises en tant que refrigerants |
| WO1993001152A2 (fr) * | 1991-07-03 | 1993-01-21 | E.I. Du Pont De Nemours And Company | Compositions azeotropes ou de type azeotrope de pentafluoroethane et de propane ou d'isobutane |
| WO1994000529A1 (fr) * | 1992-06-25 | 1994-01-06 | Great Lakes Chemical Corporation | Compositions refrigerantes contenant 1,1,1,2,3,3,3-heptafluoropropane |
| WO1994002564A1 (fr) * | 1992-07-28 | 1994-02-03 | E.I. Du Pont De Nemours And Company | Composition refrigerante contenant un ether pentafluorodimethylique |
| EP0724003A2 (fr) * | 1995-01-25 | 1996-07-31 | Oho, Suk Jae | Composition réfrigérante |
| US5611210A (en) * | 1993-03-05 | 1997-03-18 | Ikon Corporation | Fluoroiodocarbon blends as CFC and halon replacements |
| JPH09111231A (ja) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | トリフルオロイオドメタンを含む混合作動流体およびそれを用いた冷凍サイクル装置 |
| JPH09111230A (ja) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | トリフルオロイオドメタンを含む混合作動流体およびそれを用いた冷凍サイクル装置 |
| WO1997015637A1 (fr) * | 1995-10-20 | 1997-05-01 | Tsinghua University | Refrigerant |
-
1998
- 1998-02-13 KR KR1019980004403A patent/KR100255477B1/ko not_active Expired - Fee Related
- 1998-06-17 AU AU79393/98A patent/AU7939398A/en not_active Abandoned
- 1998-06-17 WO PCT/KR1998/000167 patent/WO1999041325A1/fr active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992001762A1 (fr) * | 1990-07-26 | 1992-02-06 | E.I. Du Pont De Nemours And Company | Melanges quasi-azeotropes destines a etre utilises en tant que refrigerants |
| WO1993001152A2 (fr) * | 1991-07-03 | 1993-01-21 | E.I. Du Pont De Nemours And Company | Compositions azeotropes ou de type azeotrope de pentafluoroethane et de propane ou d'isobutane |
| WO1994000529A1 (fr) * | 1992-06-25 | 1994-01-06 | Great Lakes Chemical Corporation | Compositions refrigerantes contenant 1,1,1,2,3,3,3-heptafluoropropane |
| WO1994002564A1 (fr) * | 1992-07-28 | 1994-02-03 | E.I. Du Pont De Nemours And Company | Composition refrigerante contenant un ether pentafluorodimethylique |
| US5611210A (en) * | 1993-03-05 | 1997-03-18 | Ikon Corporation | Fluoroiodocarbon blends as CFC and halon replacements |
| EP0724003A2 (fr) * | 1995-01-25 | 1996-07-31 | Oho, Suk Jae | Composition réfrigérante |
| JPH09111231A (ja) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | トリフルオロイオドメタンを含む混合作動流体およびそれを用いた冷凍サイクル装置 |
| JPH09111230A (ja) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | トリフルオロイオドメタンを含む混合作動流体およびそれを用いた冷凍サイクル装置 |
| WO1997015637A1 (fr) * | 1995-10-20 | 1997-05-01 | Tsinghua University | Refrigerant |
Non-Patent Citations (3)
| Title |
|---|
| DATABASE WPIL, Week 9723, DERWENT PUBLICATIONS LTD; & WO 9715637 A1 (HAN LIZHONG et al.) 01 May 1997. * |
| DATABASE WPIL, Week 9727, DERWENT PUBLICATIONS LTD., AN 97-295223; & JP 9111230 A (MATSUSHITA DENKI SANGYO KK) 28-04-97. * |
| DATABASE WPIL, Week 9727, DERWENT PUBLICATIONS LTD., AN 97-295224; & JP 9111231 A (MATSUSHITA DENKI SANGYO KK) 28-04-97. * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997519A1 (fr) * | 1998-09-29 | 2000-05-03 | Nippon Mitsubishi Oil Corporation | Huile pour machine réfrigérante |
| WO2020116189A1 (fr) * | 2018-12-05 | 2020-06-11 | ダイキン工業株式会社 | Composition de transfert de chaleur |
| JP2020090598A (ja) * | 2018-12-05 | 2020-06-11 | ダイキン工業株式会社 | 熱伝達組成物 |
| US12173220B2 (en) | 2018-12-05 | 2024-12-24 | Daikin Industries, Ltd. | Heat transfer composition |
Also Published As
| Publication number | Publication date |
|---|---|
| AU7939398A (en) | 1999-08-30 |
| KR100255477B1 (ko) | 2000-05-01 |
| KR19980019266A (ko) | 1998-06-05 |
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