US 9,809,734 B2
Heat transfer compositions and methods
Samuel F. Yana Motta, East Amherst, NY (US); Mark W. Spatz, East Amherst, NY (US); Ronald P. Vogl, Springville, NY (US); and Elizabet del Carmen Vera Becerra, Williamsville, NY (US)
Assigned to HONEYWELL INTERNATIONAL INC., Morris Plains, NJ (US)
Filed by HONEYWELL INTERNATIONAL INC., Morristown, NJ (US)
Filed on Jan. 30, 2015, as Appl. No. 14/609,514.
Application 14/609,514 is a division of application No. 13/762,550, filed on Feb. 8, 2013, granted, now 8,980,118.
Application 13/762,550 is a continuation in part of application No. 13/099,218, filed on May 2, 2011, abandoned.
Claims priority of provisional application 61/598,056, filed on Feb. 13, 2012.
Prior Publication US 2015/0135765 A1, May 21, 2015
Int. Cl. C09K 5/04 (2006.01); F25B 45/00 (2006.01); F25B 1/00 (2006.01)
CPC C09K 5/045 (2013.01) [F25B 1/00 (2013.01); F25B 45/00 (2013.01); C09K 2205/126 (2013.01); C09K 2205/22 (2013.01)] 22 Claims
 
1. A heat transfer composition comprising: (a) from about 10% to about 35% by weight of HFC-32; (b) from about 10% to about 35% by weight of HFC-125, wherein the weight ratio of said HFC-32:HF-125 is from about 0.9:1.2 to about 1.2:0.9; (c) from greater than 0% to about 30% by weight of HFO-1234yf and from greater than 0% to about 30% by weight of HFO-1234ze, wherein the ratio of HFO-1234ze:HFO-1234yf is about 7:20 and wherein said HFO-1234ze consists essentially of transHFO-1234ze; (d) from about 10% to about 35% by weight of HFC-134a, with the weight percent being based on the total of the components (a)-(d) in the composition.