US20110219815A1 - Heat transfer compositions and methods - Google Patents
Heat transfer compositions and methods Download PDFInfo
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- US20110219815A1 US20110219815A1 US13/099,218 US201113099218A US2011219815A1 US 20110219815 A1 US20110219815 A1 US 20110219815A1 US 201113099218 A US201113099218 A US 201113099218A US 2011219815 A1 US2011219815 A1 US 2011219815A1
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- 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
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- 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
- C09K5/045—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 containing only fluorine as halogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- 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
- C09K2205/104—Carboxylic acid esters
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- 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
- C09K2205/122—Halogenated hydrocarbons
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- 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
- C09K2205/126—Unsaturated fluorinated hydrocarbons
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- 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
- C09K2205/22—All components of a mixture being fluoro compounds
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- 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
- C09K2205/40—Replacement mixtures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
Definitions
- This invention relates to compositions, methods and systems having utility in refrigeration applications, with particular benefit in medium and low temperature refrigeration applications, and in particular aspects to refrigerant compositions for replacement of refrigerant HFC-404A for heating and cooling applications and to retrofitting medium and low temperature refrigerant systems, including systems designed for use with HFC-404A.
- Fluorocarbon based fluids have found widespread use in many residential, commercial and industrial applications, including as the working fluid in systems such as air conditioning, heat pump and refrigeration systems. Because of certain suspected environmental problems, including the relatively high global warming potentials associated with the use of some of the compositions that have heretofore been used in these applications, it has become increasingly desirable to use fluids having low or even zero ozone depletion and global warming potentials, such as hydrofluorocarbons (“HFCs”). For example, a number of governments have signed the Kyoto Protocol to protect the global environment and setting forth a reduction of CO2 emissions (global warming). Thus, there is a need for a low- or non-flammable, non-toxic alternative to replace certain of high global warming HFCs.
- HFCs hydrofluorocarbons
- HFC-404A the combination of HFC-125:HFC-143a:HFC134a in an approximate 44:52:4 weight ratio is referred to in the art as HFC-404A or R-404A).
- R-404A has an estimated high Global Warming Potential (GWP) of 3922.
- any potential substitute must also possess those properties present in many of the most widely used fluids, such as excellent heat transfer properties, chemical stability, low- or no-toxicity, non-flammability and/or lubricant compatibility, among others.
- thermodynamic performance or energy efficiency may have secondary environmental impacts through increased fossil fuel usage arising from an increased demand for electrical energy.
- CFC refrigerant substitutes to be effective without major engineering changes to conventional vapor compression technology currently used with CFC refrigerants.
- Flammability is another important property for many applications. That is, it is considered either important or essential in many applications, including particularly in heat transfer applications, to use compositions which are non-flammable. Thus, it is frequently beneficial to use in such compositions compounds which are nonflammable.
- nonflammable refers to compounds or compositions which are determined to be nonflammable as determined in accordance with ASTM standard E-681, dated 2002, which is incorporated herein by reference. Unfortunately, many HFC's which might otherwise be desirable for used in refrigerant compositions are not nonflammable as that term is used herein.
- fluoroalkane difluoroethane HFC-152a
- fluoroalkene 1,1,1-trifluorpropene HFO-1243zf
- compositions, and particularly heat transfer compositions that are highly advantageous in heating and cooling systems and methods, particularly vapor compression heating and cooling systems, and even more particularly low temperature refrigerant systems, including systems which are used with and/or have been designed for use with HFC-404A.
- compositions, methods and systems which comprise or utilize a multi-component mixture comprising: (a) from about 10% to about 35% by weight of difluoromethane (HFC-32); (b) from about 10% to about 35% by weight of pentafluoroethane (HFC-125); (c) from about 20% to about 50% by weight of HFO-1234ze, HFO-1234yf and combinations of these; (d) from about 15% to about 35% by weight of 1,1,1,2-tetrafluoroethane (HFC-134a); and optionally (e) up to about 10% by weight of CF 3 I and up to about 5% by weight of HFCO-1233ze, with the weight percent being based on the total of the components (a)-(e) in the composition.
- HFC-32 difluoromethane
- pentafluoroethane HFC-125
- HFO-1234yf pentafluoroethane
- HFC-134a 1,1,1,2-tetrafluoroe
- the compositions comprise a multi-component mixture comprising: (a) from about 15% to about 25% by weight of HFC-32; (b) from about 10% to about 30% by weight of HFC-125; (c) from about 20% to about 50% by weight of HFO-1234ze, HFO-1234yf, and combinations of these; (d) from about 15% to about 35% by weight of HFC-134a; and optionally (e) up to about 5% by weight of CF3I and up to about 5% by weight of HFCO-1233ze, with the weight percent being based on the total of the components (a)-(e) in the composition.
- the present invention provides also methods and systems which utilize the compositions of the present invention, including methods and systems for heat transfer and for retrofitting existing heat transfer systems.
- Certain preferred method aspects of the present invention relate to methods of providing relatively low temperature cooling, such as in low temperature refrigeration systems.
- Other preferred method aspects of the present invention provide methods of retrofitting an existing refrigeration system, preferably low temperature refrigeration systems, designed to contain and/or containing R-404A refrigerant comprising introducing a composition of the present invention into the system without substantial engineering modification of said existing refrigeration system.
- HFO-1234ze is used herein generically to refer to 1,1,1,3-tetrafluoropropene, independent of whether it is the cis- or trans-form.
- cisHFO-1234ze and “transHFO-1234ze” are used herein to describe the cis- and trans-forms of 1,1,1,3-tetrafluoropropene respectively.
- HFO-1234ze therefore includes within its scope cisHFO-1234ze, transHFO-1234ze, and all combinations and mixtures of these.
- HFO-1233 is used herein to refer to all trifluoro, monochloropropenes. Among the trifluoro, monochloropropenes are included 1,1,1,trifluoro-2,chloro-propene (HFCO-1233xf), both cis- and trans-1,1,1-trifluo-3,chlororopropene (HFCO-1233zd).
- HFCO-1233zd is used herein generically to refer to 1,1,1-trifluo-3,chloropropene, independent of whether it is the cis- or trans-form.
- cisHFCO-1233zd and “transHFCO-1233zd” are used herein to describe the cis- and trans-forms of 1,1,1-trifluo,3-chlororopropene, respectively.
- HFCO-1233zd therefore includes within its scope cisHFCO-1233zd, transHFCO-1233zd, and all combinations and mixtures of these.
- Low temperature refrigeration systems are important in many applications, such as to the food manufacture, distribution and retail industries. Such systems play a vital role in ensuring that food which reaches the consumer is both fresh and fit to eat.
- HFC-404A which has an estimated high Global Warming Potential (GWP) of 3922.
- GWP Global Warming Potential
- the present invention may also encompass medium temperature refrigeration composition, systems and methods.
- the present methods and systems involve evaporator temperatures of from above about ⁇ 15° C. to about 5° C.
- An example of such a medium temperature system and method involves providing cooling in the fresh food compartment of a residential refrigerator.
- compositions of the present invention are generally adaptable for use in heat transfer applications, that is, as a heating and/or cooling medium, but are particularly well adapted for use, as mentioned above, in medium and low temperature refrigeration systems, and preferably in low temperature systems, that have heretofor used HFC-404A and/or systems that have heretofor used R-22.
- the combination HFO-1234ze and HFO-1234yf is referred to herein as the “tetrafluoropropene component” or “TFC,” and in certain embodiments highly preferred combinations of properties can be achieved for composition which comprise a weight ratio of HFC-134a:TFC of from about 5:7 to about 1:1, with a ratio of about 4:6 being preferred in certain embodiments.
- HFO-1234ze comprise transHFO-1234ze, and preferably comprise transHFO-1234ze in major proportion, and in certain embodiments consist essentially of transHFO-1234ze.
- compositions of the present invention are capable of achieving a difficult to achieve combination of properties, including particularly low GWP.
- Table A illustrates the substantial improvement in GWP exhibited by certain compositions of the present invention in comparison to the GWP of HFC-404A, which has a GWP of 3922.
- composition of the Invention GWP as a (weight fraction, based on Percentage of identified components) Name GWP R404A GWP R125/R134a/R143a (0.44/0.04/0.52) R404A 3922 R32/R125/R134a/1234yf A1 1331 34% (0.25/0.25/0.2/0.3) R32/R125/R134a/1234ze A2 1568 40% (0.325/0.325/0.147/0.203) R32/R125/R134a/1234ze/1234yf A3 1494 38% (0.3/0.3/0.168/0.16/0.072) R32/R125/R134a/1234yf A4 974 25% (0.13/0.13/0.3/0.44) R32/R125/R134a/1234ze) A5 975 25% (0.125/0.125/0.315/0.435 R32/R125/R134a/1234ze/1234yf A6 975 25% (0.125/0.125/0.315/0.3/0.135) The compositions
- refrigerant compositions according to the present invention include a lubricant, generally in amounts of from about 30 to about 50 percent by weight of the composition, and in some case potentially in amount greater than about 50 percent and other cases in amounts as low as about 5 percent.
- the present compositions may also include a compatibilizer, such as propane, for the purpose of aiding compatibility and/or solubility of the lubricant.
- a compatibilizer such as propane
- Such compatibilizers including propane, butanes and pentanes, are preferably present in amounts of from about 0.5 to about 5 percent by weight of the composition.
- Combinations of surfactants and solubilizing agents may also be added to the present compositions to aid oil solubility, as disclosed by U.S. Pat. No.
- Commonly used refrigeration lubricants such as Polyol Esters (POEs) and Poly Alkylene Glycols (PAGs), PAG oils, silicone oil, mineral oil, alkyl benzenes (ABs) and poly(alpha-olefin) (PAO) that are used in refrigeration machinery with hydrofluorocarbon (HFC) refrigerants may be used with the refrigerant compositions of the present invention.
- Commercially available mineral oils include Witco LP 250 (registered trademark) from Witco, Zerol 300 (registered trademark) from Shrieve Chemical, Sunisco 3GS from Witco, and Calumet R015 from Calumet.
- alkyl benzene lubricants include Zerol 150 (registered trademark).
- Commercially available esters include neopentyl glycol dipelargonate, which is available as Emery 2917 (registered trademark) and Hatcol 2370 (registered trademark).
- Other useful esters include phosphate esters, dibasic acid esters, and fluoroesters.
- hydrocarbon based oils are have sufficient solubility with the refrigerant that is comprised of an iodocarbon, the combination of the iodocarbon and the hydrocarbon oil might more stable than other types of lubricant. Such combination may therefore be advantageous.
- Preferred lubricants include polyalkylene glycols and esters. Polyalkylene glycols are highly preferred in certain embodiments because they are currently in use in particular applications such as mobile air-conditioning. Of course, different mixtures of different types of lubricants may be used.
- compositions of the present invention are used in refrigeration systems originally designed for use with an HFC refrigerant, such as, for example, R-404.
- HFC refrigerant such as, for example, R-404.
- the preferred compositions of the present invention tend to exhibit many of the desirable characteristics of R-404A but have a GWP that is substantially lower than that of R-404A while at the same time having a capacity and/or efficiency that is substantially similar to or substantially matches, and preferably is as high as or higher than R-404A.
- GWPs global warming potentials
- the present compositions have a GWP of about 1500 or less, and even more preferable of less than about 1000.
- the present compositions are used in refrigeration systems which had contained and/or had originally been designed for use with R-404A.
- Preferred refrigeration compositions of the present invention may be used in refrigeration systems containing a lubricant used conventionally with R-404A, such as mineral oils, polyalkylbenzene, polyalkylene glycol oils, and the like, or may be used with other lubricants traditionally used with HFC refrigerants.
- a lubricant used conventionally with R-404A such as mineral oils, polyalkylbenzene, polyalkylene glycol oils, and the like
- the term “refrigeration system” refers generally to any system or apparatus, or any part or portion of such a system or apparatus, which employs a refrigerant to provide cooling.
- Such refrigeration systems include, for example, air conditioners, electric refrigerators, chillers (including chillers using centrifugal compressors), and the like.
- low temperature refrigeration system refers to vapor compression refrigeration systems which utilize one or more compressors and a condenser temperature of from about 35° C. to about 45° C.
- the systems have an evaporator temperature of from about ⁇ 40° C. and less than about ⁇ 15° C., more preferably from about ⁇ 35° C. to about ⁇ 25° C., with an evaporator temperature preferably of about ⁇ 32° C.
- the systems have a degree of superheat at evaporator outlet of from about 0° C.
- the systems have a degree of superheat in the suction line of from about 15° C. to about 25° C., with a degree of superheat in the suction line preferably of from about 20° C. to about 25° C.
- the coefficient of performance is a universally accepted measure of refrigerant performance, especially useful in representing the relative thermodynamic efficiency of a refrigerant in a specific heating or cooling cycle involving evaporation or condensation of the refrigerant. In refrigeration engineering, this term expresses the ratio of useful refrigeration to the energy applied by the compressor in compressing the vapor.
- the capacity of a refrigerant represents the amount of cooling or heating it provides and provides some measure of the capability of a compressor to pump quantities of heat for a given volumetric flow rate of refrigerant. In other words, given a specific compressor, a refrigerant with a higher capacity will deliver more cooling or heating power.
- thermodynamic properties of the refrigerant is from the thermodynamic properties of the refrigerant using standard refrigeration cycle analysis techniques (see for example, R. C. Downing, FLUOROCARBON REFRIGERANTS HANDBOOK, Chapter 3, Prentice-Hall, 1988).
- a low temperature refrigeration system is provided.
- the condenser temperature is set to 40.55° C., which generally corresponds to an outdoor temperature of about 35° C.
- the degree of subcooling at the expansion device inlet is set to 5.55° C.
- the evaporating temperature is set to ⁇ 31.6° C., which corresponds to a box temperature of about ⁇ 26° C.
- the degree of superheat at evaporator outlet is set to 5.55° C.
- the degree of superheat in the suction line is set to 13.88° C., and the compressor efficiency is set to 65%.
- the pressure drop and heat transfer in the connecting lines are considered negligible, and heat leakage through the compressor shell is ignored.
- compositions A1-A6 identified in Table A above in accordance with the present invention are determined for the compositions A1-A6 identified in Table A above in accordance with the present invention, and these operating parameters are reported in Table 1 below, based upon HFC-404A having a COP value of 100%, a capacity value of 100% and a discharge temperature of 97.6° C.
- compositions A1-A3 exhibit capacities and efficiencies (COPs) in this low temperature refrigeration system that are within about 8%, and even more preferably within about 6% of that of R404A, and preferably within such limits but higher than the capacity of the R404A.
- these compositions of the present invention are excellent candidates for use as drop-in replacements for low temperature refrigeration systems originally containing and/or designed to contain R-404A.
- compositions A4-A6 have lower capacity (68% to 82%) and superior efficiency (9% to 10% higher) while at the same time exhibiting substantial improvement in GWP, preferably as shown having a GWP of less than about 1000, which minimizes the total environmental impact.
- Compositions A3-A6 of the present invention are excellent candidates for use in retrofitting of low temperature refrigeration systems originally containing and/or designed to contain R-404A but with only minor adjustment of the system, such as some re-sizing of certain system components, such as compressors and expansion valves.
- the present invention provides retrofitting methods which comprise removing at least a portion of the existing refrigerant from the system and replacing at least a portion of the removed refrigerant with a composition of the present invention, preferably without substantial modification of the system and even more preferably without any change in major system components, such as compressors, condensers, evaporators, and expansion valves.
- major system components such as compressors, condensers, evaporators, and expansion valves.
- major system components such as compressors, condensers, evaporators, and expansion valves.
- Such operating parameters include:
- compositions A1-A6 identified in Table A above in accordance with the present invention, and these operating parameters is reported in Table 2 below:
- the replacement step is a drop-in replacement in the sense that no substantial redesign or modification of the system is required and no major item of equipment needs to be replaced in order to accommodate the refrigerant of the present invention.
- compositions A1-A3 which in general can be used in most retrofit procedures without any change of major components.
- the discharge pressure and temperature is below the limit and the expansion valve will produce enough superheat at the outlet of the evaporator.
- compositions A4-A6 provide relatively good replacement performance, the use of such compositions as a replacement for R-404A in many low temperature systems will require at least a new expansion device. As such, these compositions will provide advantage where the change of the expansion valve and/or other equipment is possible. Of course, all of the compositions A1-A6 provide excellent advantage for use in new equipment.
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- Chemical Kinetics & Catalysis (AREA)
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- General Engineering & Computer Science (AREA)
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Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/099,218 US20110219815A1 (en) | 2009-05-08 | 2011-05-02 | Heat transfer compositions and methods |
PCT/US2012/036056 WO2012151238A2 (en) | 2011-05-02 | 2012-05-02 | Heat transfer compositions and methods |
MX2013012673A MX2013012673A (es) | 2011-05-02 | 2012-05-02 | Composiciones de transferencia de calor y metodos. |
JP2014509374A JP2014514423A (ja) | 2011-05-02 | 2012-05-02 | 熱伝達組成物及び方法 |
EP12779962.5A EP2705107A4 (en) | 2011-05-02 | 2012-05-02 | METHODS AND COMPOSITIONS FOR HEAT TRANSFER |
BR112013028071-9A BR112013028071A2 (pt) | 2011-05-02 | 2012-05-02 | composição para transparência de calor, método para substituir um fluido para transferência de calor existente contido no sistema para transferência de calor, e sistema para transferência de calor |
CN201280021647.1A CN103635558A (zh) | 2011-05-02 | 2012-05-02 | 传热组合物和传热方法 |
AU2012250863A AU2012250863A1 (en) | 2011-05-02 | 2012-05-02 | Heat transfer compositions and methods |
KR1020137031691A KR20140027362A (ko) | 2011-05-02 | 2012-05-02 | 열 전달 조성물 및 방법 |
RU2013152876/05A RU2013152876A (ru) | 2011-05-02 | 2012-05-02 | Теплопередающие композиции и способы теплопередачи |
CA2834894A CA2834894A1 (en) | 2011-05-02 | 2012-05-02 | Heat transfer compositions and methods |
US13/762,550 US8980118B2 (en) | 2009-05-08 | 2013-02-08 | Heat transfer compositions and methods |
US14/562,201 US9725631B2 (en) | 2009-05-08 | 2014-12-05 | Heat transfer compositions and methods |
US14/609,514 US9809734B2 (en) | 2009-05-08 | 2015-01-30 | Heat transfer compositions and methods |
US15/804,409 US20180057725A1 (en) | 2009-05-08 | 2017-11-06 | Heat transfer compositions and methods |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
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US17677309P | 2009-05-08 | 2009-05-08 | |
US12/511,954 US20120097885A9 (en) | 2003-10-27 | 2009-07-29 | Compositions Containing Difluoromethane and Fluorine Substituted Olefins |
US24078609P | 2009-09-09 | 2009-09-09 | |
US24781609P | 2009-10-01 | 2009-10-01 | |
US32995510P | 2010-04-30 | 2010-04-30 | |
PCT/US2010/034120 WO2010129920A1 (en) | 2009-05-08 | 2010-05-07 | Heat transfer compositions and methods |
US13/099,218 US20110219815A1 (en) | 2009-05-08 | 2011-05-02 | Heat transfer compositions and methods |
Related Parent Applications (3)
Application Number | Title | Priority Date | Filing Date |
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US12/511,954 Continuation US20120097885A9 (en) | 2002-10-25 | 2009-07-29 | Compositions Containing Difluoromethane and Fluorine Substituted Olefins |
US12/511,954 Continuation-In-Part US20120097885A9 (en) | 2002-10-25 | 2009-07-29 | Compositions Containing Difluoromethane and Fluorine Substituted Olefins |
PCT/US2010/034120 Continuation-In-Part WO2010129920A1 (en) | 2009-05-08 | 2010-05-07 | Heat transfer compositions and methods |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
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US13/182,591 Continuation-In-Part US20120011863A1 (en) | 2009-05-08 | 2011-07-14 | Methods of servicing mobile air conditioning systems |
US13/762,550 Continuation-In-Part US8980118B2 (en) | 2009-05-08 | 2013-02-08 | Heat transfer compositions and methods |
US14/562,201 Continuation US9725631B2 (en) | 2009-05-08 | 2014-12-05 | Heat transfer compositions and methods |
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US20110219815A1 true US20110219815A1 (en) | 2011-09-15 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US13/099,218 Abandoned US20110219815A1 (en) | 2009-05-08 | 2011-05-02 | Heat transfer compositions and methods |
US14/562,201 Active US9725631B2 (en) | 2009-05-08 | 2014-12-05 | Heat transfer compositions and methods |
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US14/562,201 Active US9725631B2 (en) | 2009-05-08 | 2014-12-05 | Heat transfer compositions and methods |
Country Status (17)
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US (2) | US20110219815A1 (zh) |
EP (3) | EP3026092B1 (zh) |
JP (4) | JP5663005B2 (zh) |
KR (3) | KR20120025494A (zh) |
CN (2) | CN106905925A (zh) |
AU (1) | AU2010245671B2 (zh) |
BR (1) | BRPI1011576A8 (zh) |
CA (2) | CA3038158C (zh) |
DK (2) | DK3026092T3 (zh) |
ES (2) | ES2559009T3 (zh) |
HU (2) | HUE060399T2 (zh) |
LT (1) | LT3026092T (zh) |
MX (2) | MX339549B (zh) |
PL (2) | PL3026092T3 (zh) |
PT (2) | PT2427527E (zh) |
SI (2) | SI2427527T1 (zh) |
WO (1) | WO2010129920A1 (zh) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
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