Refrigerant

Details Refrigerant Refrigerant

2011-01-04

2011-01-04

Hardee, John R (Department: 1796)

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

Reexamination Certificate

active

07862739

ABSTRACT:
This invention relates to a refrigerant that is azeotropic or near-azeotropic and comprises a binary blend of R1270 and R161, R170 and R717, or R744 and R41. In a first embodiment, the binary blend has a molar composition of 50 to 80 percent R1270, the remainder being R161. In a second embodiment, the binary blend has a molar composition of 30 to 60 percent R717, the remainder being R170. In a third embodiment the binary blend has a molar composition of 20 to 60 percent R744, the remainder being R161.

REFERENCES:
patent: 5672293 (1997-09-01), Minor et al.
patent: 6001273 (1999-12-01), Bivens et al.
patent: 2003/0199408 (2003-10-01), Minor et al.
patent: 2004/0014621 (2004-01-01), Minor et al.
patent: 2005/0178998 (2005-08-01), Felix et al.
patent: 1560174 (2005-01-01), None
patent: 2 298 866 (1996-09-01), None
patent: 2438318 (2007-11-01), None
patent: 2 438 318 (2008-07-01), None
patent: WO 99/24358 (1999-05-01), None
patent: WO-2006/038766 (2006-04-01), None
English Language abstract for CN1560174 (retrieved from http://ep.espacenet.com on Aug. 11, 2010).

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