Patent ID: 7071154

Claim:
An azeotrope-like composition comprising a blend of (a) C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 ; and (b) an organic solvent, wherein the blend is selected from the group consisting of (i) blends consisting essentially of about 1 to about 81 weight percent of C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 and about 99 to about 19 weight percent of 1-bromopropane that boil below about 71.0° C. at about 101 kilopascals (kPa); (ii) blends consisting essentially of about 23 to about 99 weight percent of C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 and about 77 to about 1 weight percent of trifluoromethylbenzene that boil below about 98.0° C. at about 101 kPa; (iii) blends consisting essentially of about 65 to about 99 weight percent of C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 and about 35 to about 1 weight percent of hexamethyldisilazane that boil below about 97.9° C. at about 101 kPa; (iv) blends consisting essentially of about 68 to about 99 weight percent of C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 and about 32 to about 1 weight percent of isobutyl acetate that boil below about 98.1° C. at about 101 kPa; (v) blends consisting essentially of about 70 to about 99 weight percent of C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 and about 30 to about 1 weight percent of methylisobutyl ketone that boil below about 98.0° C. at about 101 kPa; and (vi) blends consisting essentially of about 1 to about 59 weight percent of C 2 F 5 CF(OCH 3 )CF(CF 3 ) 2 and about 99 to about 41 weight percent of trans-1,2-dichloroethylene that boil below about 47.7° C. at about 101 kPa.