Patent ID: 6313083
Filing Date: 2001-11-06
Classification: C11D,C23G

Abstract:
An azeotrope-like composition including (a) perfluorobutyl methyl ether, consisting essentially of perfluoro-n-butyl methyl ether and perfluoroisobutyl methyl ether and mixtures thereof, and (b) organic solvent, which composition is selected from the group consisting of:(i) compositions consisting essentially of about 95 to 61 weight percent of perfluorobutyl methyl ether and about 5 to 39 weight percent cyclohexane that boil at about 54 to 56.degree. C. at about 735 torr;(ii) compositions consisting essentially of about 99 to 83 weight percent of perfluorobutyl methyl ether and about 1 to 17 weight percent methylcyclohexane that boil at about 58 to 60.degree. C. at about 729 torr;(iii) compositions consisting essentially of about 99 to 86 weight percent of perfluorobutyl methyl ether and about 1 to 14 weight percent heptane that boil at about 58 to 60.degree. C. at about 732 torr;(iv) compositions consisting essentially of about 99 to 88 weight percent of perfluorobutyl methyl ether and about 1 to 12 weight percent isooctane that boil at about 58 to 60.degree. C. at about 739 torr;(v) compositions consisting essentially of about 93 to 44 weight percent of perfluorobutyl methyl ether and about 7 to 56 weight percent hexane that boil at about 51 to 53.degree. C. at about 736 torr.