US 7,825,081 C1 (1,533rd)
Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons
Rajiv R. Singh, Getzville, NY (US); Hang T. Pham, Amherst, NY (US); Gary M. Knopeck, Lakeview, NY (US); Louis E. Herena, Scarsdale, NY (US); and Jeremy N. Diringer, Morristown, NJ (US)
Filed by Rajiv R. Singh, Getzville, NY (US); Hang T. Pham, Amherst, NY (US); Gary M. Knopeck, Lakeview, NY (US); Louis E. Herena, Scarsdale, NY (US); and Jeremy N. Diringer, Morristown, NJ (US)
Assigned to Honeywell International Inc.
Reexamination Request No. 95/000,630, May 2, 2011.
Reexamination Certificate for Patent 7,825,081, issued Nov. 2, 2010, Appl. No. 12/198,411, Aug. 26, 2008.
Application 95/000,630 is a division of application No. 10/837,526, filed on Apr. 29, 2004, granted, now 7,524,805.
Inter Partes Reexamination Certificate issued on Jun. 6, 2018.
Int. Cl. C09K 5/04 (2006.01); A01N 29/02 (2006.01); B01F 17/00 (2006.01); F25B 31/00 (2006.01); F25B 1/00 (2006.01); C09K 3/30 (2006.01); C11D 7/50 (2006.01)
CPC C09K 5/045 (2013.01) [A01N 29/02 (2013.01); B01F 17/0085 (2013.01); C09K 3/30 (2013.01); F25B 1/00 (2013.01); F25B 31/002 (2013.01); C09K 2205/122 (2013.01); C09K 2205/126 (2013.01); C09K 2205/22 (2013.01); C09K 2205/32 (2013.01); C09K 2205/34 (2013.01); C09K 2205/40 (2013.01); C11D 7/505 (2013.01); C11D 7/5018 (2013.01)]
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
The patentability of claims 1 and 6 is confirmed.
Claims 2-5 and 7 are cancelled.
New claims 8-28 are added and determined to be patentable.
1. A method for cooling an article comprising:
condensing a refrigerant composition comprising an azeotrope-like composition comprising effective amounts of trans-1,3,3,3-tetrafluoropropene (transHFO-1234ze) and a compound selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane (“HFC-227ea”) 1,1,1,2-tetrafluoroethane (“HFC-134a”), 1,1,1,2,2-pentafluoroethane (“HFC-125”) and combinations of two or more of these; and
thereafter evaporating said refrigerant composition in the vicinity of the article to be cooled.
[ 8. The method for cooling of claim 1 wherein said azeotrope-like composition has a boiling point of from about −26° C. to about −23° C. at a pressure of about 14.4 psia.]
[ 9. The method for cooling of claim 1 wherein said azeotrope-like composition consists essentially of from greater than zero to about 75 weight percent transHFO-1234ze and from about 25 to less than 100 weight percent of HFC-134a.]
[ 10. The method for cooling of claim 1 wherein said azeotrope-like composition consists essentially of from greater than zero to about 60 weight percent transHFO-1234ze and from about 40 to less than 100 weight percent of HFC-134a.]
[ 11. The method for cooling of claim 1 wherein said azeotrope-like composition consists essentially of from about 1 to about 40 weight percent transHFO-1234ze and from about 60 to about 99 weight percent of HFC-134a.]
[ 12. The method for cooling of claim 1 wherein said azeotrope-like composition consists essentially of from about 5 to about 35 weight percent transHFO-1234ze and from about 65 to about 95 weight percent of HFC-134a.]
[ 13. The method for cooling of claim 1 wherein said condensing and evaporating occur in a refrigeration system.]
[ 14. The method for cooling of claim 13 wherein said refrigeration system is an air conditioning system.]
[ 15. The method for cooling of claim 13 wherein said refrigeration system was designed for use with HFC-134a.]
[ 16. The method for cooling of claim 13 wherein said refrigeration system was designed for use with a refrigerant comprising a chlorofluorocarbon.]
[ 17. The method for cooling of claim 13 wherein said refrigeration system comprises a lubricant.]
[ 18. The method for cooling of claim 17 wherein said lubricant comprises mineral oil or silicone oil.]
[ 19. The method for heating of claim 2 wherein said azeotrope-like composition has a boiling point of from about −26° C. to about −23° C. at a presssure of about 14.4 psia.]
[ 20. The method for heating of claim 2 wherein said azeotrope-like composition consists essentially of from greater that zero to about 75 weight percent transHFO-1234ze and from about 25 to less than 100 weight percent of HFC-134a.]
[ 21. The method for heating of claim 2 wherein said azeotrope-like composition consists essentially of from greater that zero to about 60 weight percent transHFO-1234ze and from about 40 to less than 100 weight percent of HFC-134a.]
[ 22. The method for heating of claim 2 wherein said azeotrope-like composition consists essentially of from about 1 to about 40 weight percent transHFO-1234ze and from about 60 to about 99 weight percent of HFC-134a.]
[ 23. The method for heating of claim 2 wherein said azeotrope-like composition consists essentially of from about 5 to about 35 weight percent transHFO-1234ze and from about 65 to about 95 weight percent of HFC-134a.]
[ 24. The method for heating of claim 2 wherein said condensing and evaporating occur in a refrigeration system.]
[ 25. The method for heating of claim 24 wherein said refrigeration system is an air conditioning system.]
[ 26. The method for heating of claim 24 wherein said refrigeration system was designed for use with HFC-134a.]
[ 27. The method for heating of claim 24 wherein said refrigeration system was designed for use with a refrigerant comprising a chlorofluorocarbon.]
[ 28. The method for heating of claim 24 wherein said refrigeration system comprises a lubricant.]