Patent ID: 7247605

Claim:
A method of improving the solubility of perfluorinated polyethers in fluorinated solvents, comprising combining a perfluorinated polyether with a solubilizer and a fluorinated solvent to form a solution, wherein the solubilizer is selected from the group consisting of tetrahydrofuran, 2-methyl-tetrahydrofuran, tetrahydropyran, and dioxane, and wherein the solution comprises about 0.001–1 parts by weight of perfluorinated polyether to about 99–99.999 parts by weight of the solvent and solubilizer combined, and further wherein the weight ratio of solubilizer to fluorinated solvent is either about the azeotropic ratio or within the range of about 2:98 to 10:90, or is both about the azeotropic ratio and within the range of about 2:98 to 10:90.