| US 7,479,239 B2 | ||
| 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone compositions comprising a hydrofluorocarbon and uses thereof | ||
| Barbara Haviland Minor, Elkton, Md. (US); Mario Joseph Nappa, Newark, Del. (US); Allen Capron Sievert, Elkton, Md. (US); and Thomas J. Leck, Hockessin, Del. (US) | ||
| Assigned to E.I. Du Pont de Nemours and Company, Wilmington, Del. (US) | ||
| Filed on Nov. 13, 2007, as Appl. No. 11/939,201. | ||
| Application 11/939201 is a division of application No. 11/437024, filed on May 19, 2006, granted, now 7,314,576. | ||
| Application 11/437024 is a division of application No. 11/063203, filed on Feb. 22, 2005, granted, now 7,153,448. | ||
| Claims priority of provisional application 60/575037, filed on May 26, 2004. | ||
| Claims priority of provisional application 60/584785, filed on Jun. 29, 2004. | ||
| Prior Publication US 2008/0061265 A1, Mar. 13, 2008 | ||
| Int. Cl. C09K 5/04 (2006.01) | ||
| U.S. Cl. 252—68 [252/67] | 16 Claims |
| 1. A azeotropic or azeotropic-like composition wherein the composition comprises:
about 1 to about 99 weight percent 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone and about 99 to about 1 weight
percent 1,1,2,2-tetrafluorocyclobutane.
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