Azeotropic or quasi-azeotropic composition of chloromethane
US-2015353799-A1 · Dec 10, 2015 · US
US9254468B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9254468-B2 |
| Application number | US-201314132263-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 18, 2013 |
| Priority date | Mar 7, 2008 |
| Publication date | Feb 9, 2016 |
| Grant date | Feb 9, 2016 |
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The present invention relates to formulated refrigerant systems of 1-chloro-3,3,3-trifluoropropene (R-1233zd) that are sufficiently thermally and chemically stable such that they can be effectively used sans additional stabilizers. The formulations of the present invention are particularly useful compositions for refrigeration, heat transfer and foam blowing.
Opening claim text (preview).
The invention claimed is: 1. A polyol B-side composition comprising polyol, catalyst, surfactant and a blowing agent composition comprising the halogenated olefin 1-chloro-3,3,3-trifluoropropene and less than about 2% of impurities selected from the group consisting of HFO-1234ze, HFC-245fa and mixtures thereof wherein more than about 99 wt % of said halogenated olefin remains after exposure of said composition to temperature of 100° C. for 24 hours. 2. The polyol B-side composition of claim 1 wherein said 1-chloro-3,3,3-trifluoropropene is predominantly trans-1-chloro-3,3,3-trifluoropropene. 3. The polyol B-side composition of claim 1 wherein said 1-chloro-3,3,3-trifluoropropene is greater than about 70% trans-1-chloro-3,3,3-trifluoropropene. 4. The polyol B-side composition of claim 1 wherein said 1-chloro-3,3,3-trifluoropropene is consists essentially of trans-1-chloro-3,3,3-trifluoropropene. 5. The polyol B-side composition of claim 1 further comprising a component selected from the group consisting of hydrofluorocarbons, hydrochlorofluorocarbons, hydrofluoroolefins, hydrofluorochlorocarbons, hydrocarbons, hydrofluoroethers, fluoroketones, chlorofluorocarbons, trans-1,2-dichloroethylene, carbon dioxide, ammonia, and mixtures thereof. 6. The polyol B-side composition of claim 5 wherein said hydrofluorocarbon is selected from the group consisting of difluoromethane (HFC-32); 1-fluoroethane (HFC-161); 1,1-difluoroethane (HFC-152a); 1,2-difluoroethane (HFC-152); 1,1,1-trifluoroethane (HFC-143a); 1,1,2-trifluoroethane (HFC-143); 1,1,1,2-tetrafluoroethane (HFC-134a); 1,1,2,2-tetrafluoroethane (HFC-134); 1,1,1,2,2-pentafluoroethane (HFC-125); 1,1,1,3,3-pentafluoropropane (HFC-245fa); 1,1,2,2,3-pentafluoropropane (HFC-245ca); 1,1,1,2,3-pentafluoropropane (HFC-245eb); 1,1,1,3,3,3-hexafluoropropane (HFC-236fa); 1,1,1,2,3,3-heptafluoropropane (HFC-227ea); 1,1,1,3,3-pentafluorobutane (HFC-365mfc), 1,1,1,2,3,4,4,5,5,5-decafluoropropane (HFC-4310), and mixtures thereof. 7. The polyol B-side composition of claim 5 wherein said hydrochlorofluorocarbon is selected from the group consisting of chlorodifluoromethane (HCFC-22), 1,1-dichloro-2,2,2-trifluoroethane (HCFC-123), 1-chloro-2,2,2-trifluoroethane (HCFC-124), 1,1-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b), and mixtures thereof. 8. The polyol B-side composition of claim 5 wherein said chlorofluorocarbon is selected from the group consisting of trichlorofluoromethane (R-11), dichlorodifluoromethane (R-12), 1,1,2-trifluoro-1,2,2-trifluoroethane (R-113), 1,2-dichloro-1,1,2,2-tetrafluoroethane (R-114), chloro-pentafluoroethane (R-115) and mixtures thereof. 9. The polyol B-side composition of claim 5 wherein said hydrocarbon is selected from the group consisting of propane, butane, isobutane, n-pentane, iso-pentane, neo-pentane, cyclopentane, and mixtures thereof. 10. The polyol B-side composition of claim 5 wherein said hydrofluoroolefin is selected from the group consisting of 3,3,3-trifluoropropene (HFO-1234zf), E-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene (HFO-1234yf), E-1,2,3,3,-pentafluoropropene (E-HFO-1255ye), Z-1,2,3,3,3-pentafluoropropene (Z-HFO-125ye), E-1,1,1,3,3,3-hexafluorobut-2-ene (E-HFO-1336mzz), Z-1,1,1,3,3,3-hexafluorobut-2-ene (Z-HFO-1336mzz), 1,1,1,4,4,5,5,5-octafluoropent-2-ene (HFO-1438mzz) and mixtures thereof. 11. The polyol B-side composition of claim 5 wherein said hydrofluoroether is 1,1,1,2,2,3,3-heptafluoro-3-methoxy-propane, 1,1,1,2,2,3,3,4,4,-nonafluoro-4-methoxy-butane and mixtures thereof. 12. The polyol B-side composition of claim 5 wherein said fluoroketone is 1,1,1,2,2,4,5,5,5-nonafluoro-4(trifluoromethyl)-3-3pentanone.
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 · CPC title
used as base material · CPC title
Containing Hydrofluorocarbons · CPC title
the change of state being from liquid to vapour or vice versa · CPC title
used as base material · CPC title
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