Patent ID: 6423673
Filing Date: 2002-07-23
Classification: C08J,C09K,C10M,C10N,C11D

Abstract:
An azeotrope-like composition comprising:(a) 1,1,1,3,3-pentafluorobutane; and (b) fluorinated ketone; wherein said composition is selected from the group consisting of: (i) compositions consisting essentially of about 12.5 to about 99.0 weight percent of 1,1,1,3,3-pentafluorobutane and about 1.0 to about 87.5 weight percent of C2F5C(O)CF(CF3)2 that boil below about 40Â° C. at about 760 torr; (ii) compositions consisting essentially of about 61.0 to about 99.0 weight percent of 1,1,1,3,3-pentafluorobutane and about 1.0 to about 39.0 weight percent of (CF3)2CFC(O)CF(CF3)2 that boil below about 40Â° C. at about 760 torr; and (iii) compositions consisting essentially of about 73.5 to about 99.0 weight percent of 1,1,1,3,3-pentafluorobutane and about 1.0 to about 26.5 weight percent of CF3CF2CF2C(O)CF(CF3)2 that boil below about 40Â° C. at about 760 torr.