Patent ID: 6288017
Filing Date: 2001-09-11
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 94 to 59 weight percent of the perfluorobutyl methyl ether and about 6 to 41 weight percent trifluoroethanol that boil at about 51 to 53.degree. C. at about 722 torr;(ii) compositions consisting essentially of about 95 to 58 weight percent of the perfluorobutyl methyl ether and about 5 to 42 weight percent pentafluoropropanol that boil at about 56 to 58.degree. C. at about 732 torr; and(iii) compositions consisting essentially of about 84 to 32 weight percent of the perfluorobutyl methyl ether and about 16 to 68 weight percent of hexafluoro-2-propanol that boil at about 51 to 53.degree. C. at about 729 torr.